Archived: LabWindows™/CVI™ 9.0.x Known Issues

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This content provides support for older products and technology, so you may notice outdated links or obsolete information about operating systems or other relevant products.

Overview

This document contains the LabWindows/CVI 9.0.x known issues that were discovered before and since the release of LabWindows/CVI 9.0.x. Not every issue known to NI will appear on this list; it is intended to only show the severe and more common issues that can be encountered.

Modules and Toolkits

The Known Issues for toolkits and modules can be found in the LabWindows/CVI Modules and Toolkits Known Issues document.

 

Document Organization

The Known Issues Document is divided into two separate tables appearing in two separate Developer Zone documents. The known issues in this document are organized by the category of issue, and sorted by the date the issue was added to the document. To view the issues organized by date, visit the document linked below:

Known Issues by Date

 

Contacting NI

You can contact us through any of the normal support channels including phone, email, or the discussion forums. Visit the NI Website to contact us. If you are contacting NI in regards to a specific issue, be sure to reference the ID number given in the document to the NI representative.

Known Issues by Category

The following items are known issues in LabWindows™/CVI™ 9.0.x Known Issues sorted by Category.

.NET and ActiveX
165495 Installing an application that uses ActiveX controls to a clean machine might result in a runtime error.
174102 Hidden LabWindows/CVI ActiveX Automation interface is visible in function panel tree
204719 Wrappers generated for the Microsoft.JScript .NET assembly will not compile.
217093 LabWindows/CVI .NET components do not get installed if .NET 2.0 is installed.
119213 An exception can occur when inserting an image into a report created with WordReport.fp
44669 4HK7LF7K The WordRpt_SetHeader function might not always work as expected.
283042 A LabWindows/CVI ActiveX server can crash while shutting down if there are open client connections to the server.
283065 LabWindows/CVI cannot generate wrappers for .NET Framework 4.0 assemblies.
299606 The LabWindows/CVI ActiveX Controller Wizard does not display all registered ActiveX servers.
313299 CVI_AppGetLinesFromFile returns a string with maximum length of INT16_MAX characters.
361691 The GetAllBreakpoints LabWindows/CVI ActiveX Server Interface function does not set numBreakpoints output parameter.
335556 The Word Report WordRpt_GoToCell function will always go to the first column when used in a Microsoft Word 2007 file or later.
376796 Creating an AppDomain in .NET using the mscorlib.fp library causes a System.OutOfMemoryException to be thrown.
345700 The CA_InitActiveXThreadStyleForCurrentThread function return success even if it fails.
Analysis
140249 NonLinearFitWithMaxIters may not return an error if performing the maximum number of iterations does not result in convergence.
140913 ThresholdPeakDetector has unexpected results when width is greater than 1.
156791 Several Analysis Library function panels are incorrectly relying on AnalysisLibPowerOfTwo enum.
183434 NonLinearFitWithMaxIters function does not return the best fit array when the maximum number of interations is exceeded.
247895 The threshold parameter in MultipleToneInfo, MultipleToneSignal, CxMultipleToneInfo, and CxMultipleToneSignal does not always work.
362123 Gamma, GammaC, and Beta functions compute regularized form, which is not accurately described in help.
361840 For values of x that are very large, sin (x) returns x instead of returning a number between -1 and 1.
Compiler
120676 Even with C99 enabled, some variables cannot be declared immediately following a switch statement.
127909 Instrument drivers are marked for compilation with each configuration switch.
128921 Incorrect compilation of code containing multiple anonymous inner struct members.
129546 Cannot use the Utility or Formatting and I/O Libraries and some Interface to Win32 API functions at the same time.
131800 Too many initializers error when initializing incomplete array typedefs.
132689 LabWindows/CVI autocomplete feature does not work for nested struct array fields.
134066 Linking a project can fail with an Out of Memory error in very rare circumstances,
134406 The Interface to Win32 API fails to compile with third-party compilers if C99 is enabled.
134407 Build warnings are reported when compiling the Interface to Win32 API with third-party compilers.
135927 ActiveX wrappers fail to compile when LabWindows/CVI uses the Borland compatibility mode.
136156 When passing 64-bit integers to a 32-bit integer parameter in a function call, other parameters can end up with incorrect values.
138186 Function pointers for functions without parameters require void keyword in parameter list.
139419 Including WSPiApi.h and WS2tcpip.h can cause Interface to Win32 API compile errors.
145895 Auto completion of structs does not handle arrays of structs inside other structs correctly.
152421 The compiler can crash when very large arrays are initialized with small string literals.
152423 Arrays initialized with string literals are not completely filled with zero bytes.
152425 No error reported when arrays are initialized with string literals that are too large.
158055 Cannot include windows.h in the Interactive Execution window.
162554 The non-fatal runtime error "Local was referenced before being initialized" may occur incorrectly.
162814 Cannot embed a type library in a DLL if the function panel has a custom data type.
165697 The last initialized global or static local variable in a file may not be fully allocated.
168621 Using an object file built with precompiled headers can lead to link errors.
169037 Linking against mixed-mode .NET DLLs may cause LabWindows/CVI applications to crash.
177794 LabWindows/CVI can crash when compiling a complex mathematical computation that is not assigned to a variable.
186965 Compile.exe crashes on project with "Add type library resource to DLL" option enabled.
201360 Incorrect usage of designated initializers (C99) may result in a hang in the LabWindows/CVI environment during compilation.
203051 Some constant array size expressions may be incorrectly reported as variable-length in C99 mode.
206504 Building debug versions of very large projects may cause LabWindows/CVI to run out of memory.
222105 Using XCOPY in a build step to copy a file over an existing file can break subsequent builds.
232139 LabWindows/CVI can recompile a source file if the timestamp of a .obj file changes, but there has been no change to the corresponding source file.
232194 LabWindows/CVI ignores invalid symbols in macro names.
232196 LabWindows/CVI does not consider '$' to be a valid character in a symbol identifier.
232258 You cannot use word "defined" in a macro definition.
237998 Cannot link some uuid.lib symbols in a 32-bit program.
240722 Including strsafe.h causes compilation errors.
284771 When using third-party compilers, linker errors refer to temporary object files.
275934 Including the http.h Win32 API header file can result in missing function prototype compile errors.
276524 compile.exe may report link errors for National Instruments libraries.
277739 Compiling a file with a syntax error can cause LabWindows/CVI to crash.
309184 compile.exe can crash when passed a project path that can't be found on disk.
309627 LabWindows/CVI can crash when compiling some K&R style functions.
295246 A source file containing a very large array of structures might fail to compile.
327730 LabWindows/CVI crashes during compilation when a very long variable name is used.
335358 Using the bit shift operator multiple times on the same line of code produces incorrect results for 64-bit integers in a 32-bit application.
318253 False positive user protection error when using an Interface to Win32 API struct.
363456 Compiler warning when using __int64 in switch statement expression in a 32-bit configuration.
359304 The modulo operation with 64-bit integers in a 32-bit configuration may produce incorrect results.
368271 When using an external optimizing compiler, compiler defines that are defined to strings with escaped quotations are not passed to the external compiler as strings.
404327 LabWindows/CVI may crash when changing the default calling convention of a library after it has been built.
Debugging
127318 Calling some inifile.fp functions while the Programmer's Toolbox is compiled from source code can result in a false report of leaked resources.
134586 Erroneous user protection error when accessing member of a multidimensional array of structs/pointers.
137735 The Source Code Browser does not retain all its settings when a file is recompiled.
139139 Viewing memory as HEX longs (64-bit) in the Memory Display window causes all values to turn red.
155604 Adding a watch expression that references a variable declared in block scope can hang the program when it is debugged.
177188 LabWindows/CVI debugger can crash when using memcpy to copy data from a const struct array.
179034 Obtaining a non-existent attribute with CVIXMLGetAttributeByName results in a false report of leaked resources.
184979 Breakpoint pass counts are off by one.
189661 Variables window does not always show a variable declared in for-loop scope.
217295 AppendString might work incorrectly when debugging a LabWindows/CVI program.
255342 Remote debugging can hang when debugging DLLs with DllMain.
257782 The Resource Tracking window does not track thread local variable handles.
247337 Watchpoints for nested structures may show incorrect values.
285461 Attaching the LabWindows/CVI debugger to a C++ DLL might result in significant performance degradation.
255345 TDMS_CloseFile can take a long time to complete when the LabWindows/CVI debugger is attached.
278151 A breakpoint with a pass count and a condition will never break execution as a result of the pass count.
298184 Non-fatal user protection errors can sometimes display only the message &%%s&.
294217 The Edit Breakpoint dialog box incorrectly maintains a reference to old files.
37498 44K3HK07 Variables defined inside of a block statement cannot be added to the Watch window.
326213 The Go to Line button causes an internal assert to be triggered.
316246 LabWindows/CVI changes foreground lock timeout to 0 when debugging.
322203 If you change a breakpoint due to an invalid condition while you are debugging, LabWindows/CVI ignores the next breakpoint.
324351 Canceling from the Invalid Breakpoint dialog box causes the LabWindows/CVI debugger to ignore all remaining breakpoints and continue execution.
324829 LabWindows/CVI crashes while debugging when adding a conditional breakpoint to the Interactive Execution window if the window doesn't contain any executable code.
325547 Error message in the Invalid Condition dialog box may overflow text region.
333287 Cursor does not change back to arrow after operating the splitter in the Watch Window while debugging.
353320 Attempting to edit a "??" entry in the Memory window causes an error.
358560 Function name is not reported in Break On Library Errors message.
335983 Tooltip for symbol values during debugging may appear on top of the editor's scrollbar.
370519 The LabWindows/CVI environment crashes when setting a string in the Array Display window to hexadecimal format while debugging a LabWindows/CVI application.
378420 The CNVGetFolders and CNVGetVariables functions return string arrays that show the incorrect number of elements while debugging.
Development Environment
126050 tmpdir registry value is not used when backing up files.
127036 LabWindows/CVI may display repeated save prompts if a project file path is made invalid.
127953 Closing a workspace may not remove all the files associated with a workspace.
129695 LabWindows/CVI can crash on exit after TestStand executes code modules in an external instance of LabWindows/CVI.
130204 Multiple file search does not ignore invalid paths when searching only a specific set of files.
131218 The Edit Item dialog box of a tree control shows an incorrect description of the image name.
133845 Table row labels cannot be sized when the column labels are not visible and vice-versa.
134049 User Interface Editor does not retain the awareness that it should save the .uir in an older format.
135900 The Workspace window title bar does not show Aero transparency.
136241 Attempting to run code in a released Interactive Execution window runs the project instead.
136293 LabWindows/CVI can crash after removing from the workspace a project that uses a third party compiler.
140209 Cannot change coordinates of a control label in the User Interface Editor if the control is in a tab page.
149012 Cannot list ViInt64 attributes in function panels.
154794 Web links in the Help menu do not work when .html files are not associated with a Web browser.
156166 Cut Line does not work correctly with a collapsed block of code.
156975 The User Interface Editor prompts you to assign constant names when backing up files.
157568 Go to Next Reference does not cycle through all references of a variable or a function in other files.
162197 Help tooltip for the Run button in the toolbar is incorrect after running the Interactive Execution window.
166027 Launching the Icon Editor results in the error Value is invalid or out of range.
168302 Numeric float-type function panel controls cannot be added through automation.
168426 Using an RT target originally configured by browsing the network can result in "The target machine is not connected to the network" errors.
172750 The LabWindows/CVI GUI Localization Utility preview does not work correctly with non-native character sets.
179291 Labels for numeric slide controls do not redraw if the display format is set to Scientific or Engineering, and the data type is then changed to int64 or unsigned int64.
182743 Editing a panel that has a control with a label of exactly 50 characters can cause a crash.
185942 Cannot add empty function panel file to a project.
189843 The Perforce 2009.1 client may cause LabWindows/CVI 2009 to crash.
193526 Adding a watch expression that already exists fails silently.
194053 LabWindows/CVI can display multiple prompts to check out a project file from source code control.
198012 Dragging binary files, such as a static library, between projects may result in an exception.
201055 Type library generation may fail if FP control names contain ODL keywords.
203337 The DirectShow API in the full Interface to the Win32 SDK is unusable.
207820 Modifying a menu bar font can hide elements of the Edit Menu Bar dialog box.
167925 Showing available attributes may crash LabWindows/CVI.
172157 Diffing two files can cause window contents to draw in the wrong window.
237395 Dragging a file from the Open File dialog box to the LabWindows/CVI Project Tree can cause LabWindows/CVI to crash.
258505 Selecting "Create New File" on a project folder results in an invalid file.
254788 LabWindows/CVI doesn't remember source line position of the first file opened until a second file is opened.
256142 Copying collapsed tree items with images in the User Interface Editor can cause LabWindows/CVI to crash.
252825 The Variables window might flicker when debugging a DLL built using LabWindows/CVI.
253907 If Perforce is configured with two workspaces that have different root paths, Perforce SCC integration will fail in LabWindows/CVI.
211495 LabWindows/CVI function panel help is missing stylesheets and images in multibyte operating systems.
240876 Adding a space to the Menu bar constant prefix in the Edit Menu Bar dialog box causes the dialog box to close without warning.
241552 LabWindows/CVI does not support offline files in Windows Vista and Windows 7.
248824 Using replace for a text selection may not always work.
276026 LabWindows/CVI can generate code into the wrong source file without asking for confirmation.
283527 LabWindows/CVI carets ignore Windows keyboard settings.
283634 The LabWindows/CVI Visual Studio Conversion Wizard fails for some projects that reference National Instruments modular instruments drivers.
282253 Data tooltip is too small to hold negative zero floating-point values.
289949 Using an import library generated by MinGW results in "Bad COFF Library Member Header" error message.
289314 User-defined types always receive an asterisk when used as output types in function panels.
299674 Pasting unicode text into the LabWindows/CVI Source window can cause LabWindows/CVI to crash.
295507 Undoing after hiding and showing panels can cause LabWindows/CVI to crash.
295654 Building a project with the same name as a previously loaded project can cause LabWindows/CVI to crash.
296380 EVENT_SORT does not appear in the User Interface Editor.
296381 You cannot use the Edit Text Tool to edit the last cell in a table column.
294281 Making a change to a project that is under source code control in LabWindows/CVI does not result in checking out the project.
294282 Files added to a project cannot be added to source code control.
294650 Undo in the User Interface Editor can change the z-plane order of controls.
294008 New files added in the Edit Project dialog box do not use the Project Tree Font.
328823 Toolbox.c and toolbox.h are not added to a Microsoft Visual Studio project if LabWindows/CVI is not run at least once after installation.
329035 LabWindows/CVI Conversion Wizard does not transfer 'Compile with precompiled include file' setting to 'Precompiled Headers' setting in Microsoft Visual Studio.
331534 The scroll bars in the User Interface Editor do not appear when changing the panel size using the cursor.
332047 LabWindows/CVI stops responding while searching for an inaccessible network location.
311356 Changes to the font persist in the Font dialog box when the action is canceled.
311364 Function name displays twice in the function prototype tooltip when the return value is const or volatile.
316626 The physdemo.cws example uses functionality that is removed with Security Update 5Q5FJ4QW.
321793 Adding multiple files with the same name in the Edit Project dialog box can cause LabWindows/CVI to crash.
325813 The Replace File in Project option crashes the development environment if a file with same base name is specified.
326195 The active function panel is incorrectly detected when multiple function panels are being edited in the Function Panel Editor window.
334683 The window number is displayed in the title bar of maximized windows when switching between tabbed and non-tabbed workspace.
332690 The Source Window background is not painted gray when a non-tabbed workspace is opened.
333571 Moving selected text in the Source window and then undoing offsets the original cursor position.
333983 Non project C files loaded by function panels are not unloaded when switching projects.
334920 Corners of Source Editor windows are painted black in non-tabbed Workspace when opened.
335301 Disabling tabbed workspace doesn't restore windows to their original unmaximized state.
335499 Unmaximizing windows after loading a workspace leaves inactive windows without a number in front of the title in the title bar.
361327 The CNVGetScalarDataValue function expects a char* only and not a char[ ] as described in the function help.
361958 The Project Tree does not auto-hide when a UIR file is opened.
354449 Very long strings in the Edit Distributions dialog box may crash LabWindows/CVI.
347511 Microsoft Visual Studio does not rebuild a LabWindows/CVI project if a UIR file changes but its header file does not.
347986 The Load UI resource file dialog box in the User Interface Localizer utility unloads the currently loaded localization.
352408 Pressing F1 on a function in the ActiveX Library or most of the Tools Libraries does not open the LabWindows/CVI Help to the topic for the specified function.
354450 Using a very long string when setting the value of a variable in the Variables window may crash the LabWindows/CVI environment.
354451 A very long string value in the Add/Edit Tools Menu Item dialog box may crash LabWindows/CVI.
354452 A very long string value in the Project folder or File Folder option of the New Project from Template or New File from Template dialog boxes may crash LabWindows/CVI.
337770 Setting LabWindows/CVI to "Run as administrator" will open a new instance of LabWindows/CVI each time you open a file associated with LabWindows/CVI.
333302 Auto Backup will provide an error if the file is marked as read-only.
344947 The LabWindows/CVI development environment crashes when you cut, copy, or delete a function panel tree item if it is the active item, but not selected.
352775 Sorting an empty column in the Modules window causes an error.
315800 The Find in files search will display a warning if a line it attempts to search is greater than 1024 characters.
333273 Using column selection mode in the Source window over a collapsed region of code will cause the region to be improperly selected.
333324 Function panel controls in a disabled function may not be dimmed when the function panel is reopened for editing.
336446 Entering more than 255 characters into the Line Label or Bus Label fields of the Edit Digital Graph dialog box will cause the LabWindows/CVI environment to crash.
336721 Switching the active application while a control is being moved by the mouse causes the selection outline to not be undrawn.
338093 Not moving the mouse when using Zoom to rectangle mode triggers EVENT_ZOOM with ZOOM_RESTORE for the eventdata1 parameter of the callback.
341151 Workspace folders with very long names can cause the LabWindows/CVI environment to crash when loading or saving.
373262 The Ini_WriteToRegistry and Ini_ReadFromRegistry function panels incorrectly list OS compatibility as Windows 9x/NT/2000.
386081 Items in the Resource Tracking window can be expanded only if they contain at least two items.
369682 Once the value of the File name field of the New File from Template dialog box is changed, the File path field does not change extension if the file type is changed.
370519 The LabWindows/CVI environment crashes when setting a string in the Array Display window to hexadecimal format while debugging a LabWindows/CVI application.
371022 The LabWindows/CVI environment crashes when entering a path instead of an IP address in the New Remote Debugging Target dialog box.
388073 The Show Prototype tooltip displays the help button for macros when the previous Show Prototype tooltip was for a function with help documentation.
368470 The wrong text is selected after dragging multiple lines of text in the Source window into the middle of another line of text.
386160 Cannot load attribute info for a .fp file when the associated .sub file is encoded as Unicode.
387331 Clearing a window in the Output Region causes the item to be dimmed in the Window menu.
391055 Auto indent does not place the cursor in the correct location when pressing the Enter key after a break in a switch statement.
392932 Documentation generated for variadic functions does not display variable parameter in function prototype.
399264 The Find command may miss some search matches if the Whole word option is enabled.
403645 LabWindows/CVI might crash when declaring a variable for the Attribute Value parameter of some attribute accessor functions.
407329 Selecting Rebuild from the Batch Build dialog box causes a memory leak.
408295 Source files with several while loops may cause LabWindows/CVI to hang while scrolling the source file.
408324 LabWindows/CVI will crash when you click the selection button for a ring control while editing a function panel.
Hardware
142035 Some LabWindows/CVI GPIB functions return positive values if the GPIB driver is not installed.
171624 CPU usage can spike when using ComRdTerm.
201013 OpenComConfig does not return an error if the configuration parameters are invalid.
201130 Calling OpenComConfig with an input queue size greater than 40960 bytes results in unexpected behavior on Windows.
Installer
128084 Uninstalling LabWindows/CVI from Windows Vista does not completely remove context menu file associations.
149929 Uninstalling LabWindows/CVI 9.0 may cause some non-NI software to quit working.
177971 Creating an installer spec file fails if a Microsoft Visual Studio 2008 wizard is explicitly included
334574 Installing multiple versions of LabWindows/CVI on the same system can cause the wrong versions of the LabWindows/CVI Help to be associated with the development environment.
Performance
129094 Asynchronous timer limited to intervals no greater than approximately 429 seconds.
129812 Calling a LabVIEW-built DLL causes the printf family of functions to format a double to a string incorrectly.
139658 GetFileSize can crash if you pass a path that is too long.
144368 strtod and scanf can crash in multithreaded applications.
144640 LabWindows/CVI MAX_PATHNAME_LEN is more restrictive than Windows ANSI path limitation in multibyte systems.
144806 CmtWaitForThreadPoolFunctionCompletion can hang in some rare circumstances.
155155 If you enable the Compile with precompiled include file option, LabWindows/CVI may occasionally crash when you view data tooltips during debugging.
157141 A memory leak occurs in the thread-safe queue.
162398 Toolbox lists can grow by amounts greater than the allocation policy specifies.
167239 LabWindows/CVI can hang while editing a large non-source code data file.
175150 LabWindows/CVI can crash when opening a .c file containing lines with exactly 1020 characters.
182036 CreateUDPChannelConfig fails if ws2_32.dll is installed to the application directory.
184428 LabWindows/CVI applications can crash when calling the Delay function from multiple threads.
191778 Passing NULL to the Data_Buffer or Data_Length parameters of RegEnumerateValue results in a General Protection Fault.
191841 Matrix operations that use the Intel MKL on Windows have slight numerical differences between LabWindows/CVI 2009 and previous versions of LabWindows/CVI.
196430 Large static arrays declared in a block scope can cause a stack overflow if Detect uninitialized local variables at run time is selected.
197427 NIReport_GetPrinters has a small memory leak.
201259 Calling RegisterWinMsgCallback and UnRegisterWinMsgCallback from multiple threads may result in a crash.
215744 Calling CNVData functions in network variable callbacks can cause hangs.
41414 4DDCC0IO A small memory leak exists in network variable creation.
218499 Calling GetTCPPeerName with an invalid handle can cause the application to hang.
233510 Ini_GetInt64 doesn't return –5021 (Invalid integer) for numbers greater than LLONG_MAX.
256901 Passing a pointer to a custom data type to a function that takes a void * will leak memory in a debug build.
258354 CNVProcessIsRunning may incorrectly report that the process is running if the program is run as a startup program.
253304 TDMS Files with very high channel counts might be slow to open.
246218 The numElements parameter of the DefineThreadSafeArrayVar macro is not expression-tolerant.
285443 The run-time movable custom control (movectrl.fp) leaks memory.
290737 InetSendMail can crash if the "To:" field exceeds 250 bytes.
298456 A program that has called EnableDragAndDrop might crash if closed from the Windows taskbar.
292992 Users cannot completely disallow creating directories in FileSelectPopup and DirSelectPopup.
314876 The LabWindows/CVI Run-Time Engine can hang when calling CloseCVIRTE in a secondary thread.
335299 Multiple calls to ClipboardPutBitmap in a multithreaded application causes temporary hang.
356348 Using the TCP Library from multiple threads may cause a deadlock when combined with locks in the user's TCP callbacks.
339884 When allocating memory with malloc, LabWindows/CVI will truncate the memory allocated to be an integer multiple of the size of the pointer data type.
355436 The InetTelnetOpen function limits connections to 100.
343157 Calling the GetFileAttrs function with an improperly formed path and a non-existent drive may cause a crash.
390072 A memory leak occurs in the FileBrowser_GetSelectedFiles function when no files are selected or an error occurs
397059 The GetMonitor functions fail if the monitor configuration changes.
Stand-Alone Applications and Distributions
130423 The .NET Library cannot be included in a distribution without also including the full run-time engine.
131196 The Import Measurement & Automation Explorer (MAX) Configuration File checkbox is always checked on the Advanced tab of the Edit Installer dialog box.
137318 Adding dependencies of an executable to the Installation Files & Directories section in the Edit Installer dialog box displays two copies of the DLL.
141434 LabWindows/CVI crashes when unloading a workspace with an ActiveX server project after building a distribution.
154605 Projects with a relative path for the application file can crash when configuring a distribution.
182036 CreateUDPChannelConfig fails if ws2_32.dll is installed to the application directory.
186565 LabWindows/CVI distributions cannot install fonts on Windows Vista or Windows 7.
292521 An application whose installer includes only the "Network Variable Support" sub-item might run slower than expected on a minimally configured target computer.
292805 An application whose installer includes only the "Network Variable Support" sub-item might not run correctly on a minimally configured target computer.
312179 Some Microsoft DLLs are automatically included in distributions built with LabWindows/CVI.
316361 The LabWindows/CVI low-level support driver CVINTDRV.sys contains a security vulnerability.
354481 User specified icons are not displayed in Windows Explorer for larger sizes in Windows Vista/7.
369355 Applications that use the DIAdem Connectivity Library that are installed using a distribution built in LabWindows/CVI might generate run-time errors related to the Microsoft Visual C++ 2005 run-time not being installed.
369915 Creating a distribution for a project that uses the DataSocket Library does not automatically check the NI DataSocket 5.0 option in the Drivers & Components tab of the Edit Installer dialog box.
384581 The GetExternalModuleAddrEx function fails to load a DLL if it is not in the current working directory or the system path.
396825 The default value for the Publisher option on General tab of the Edit Installers dialog box is "%company".
User Interface
101593 Strip chart scroll bar overlaps the plot area.
126708 PlotArc lacks accuracy for drawing a small angle with a large radius.
129832 Editing multiple controls changes tab order and z-plane order.
131102 On Windows Vista, file selection dialog boxes add an extra backslash (\) character when selecting a file at the root of a volume.
131413 After widening the inc/dec arrows, the entire area of the arrows is not clickable.
134165 Menu bar does not resize when using the Scale Contents On Resize or Resolution Adjustment options.
135032 Checkerboard dimming of controls is leaving label text etched.
135264 The Done button can disappear when you resize a file selection dialog box.
136678 Menu events cause a crash if there is no menu callback specified and the application has a main callback.
138050 The Remove All button in the multi-file selection dialog box is missing a corner.
139151 Debugger does not always catch incorrect use of ATTR_COPY_ORIGINAL_DATA.
139269 Hidden tab pages of a nested tab control can be made active.
140926 Changing the axis range on a LabWindows/CVI graph plot with few points causes skewed plot lines.
143075 Table and tree controls do not scale proportionally to other controls.
145322 Graph y-axis name not drawn correctly after graph changes position before being displayed.
147737 Numeric markers do not always adjust correctly to the resizing of a slide control.
149350 The cursor position of a text box control can be incorrect when typing Thai characters.
151308 Passing '.' or '..' to the DefaultFileSpec parameter of FileSelectPopup causes a legacy file dialog box to be shown.
154911 Setting ATTR_INCDEC_WIDTH on numeric controls has no effect if the inc/dec arrows are not visible.
173952 Truncating tree item strings can cause user applications to crash under some circumstances.
175118 Minor gridlines of graph controls and minor ticks of numeric slide controls can disappear.
177284 Table and tree scroll bars are not always clipped to a child panel's bounds.
183301 Splitter controls with no range limit do not draw shadow when operated.
189247 Drag and drop operation on the title bar or window frame does not work.
189400 Loading a very wide .bmp or .pcx file can fail with an Out of Memory error.
190831 ATTR_NO_EDIT_TEXT allows tab spaces to be entered into a text box control.
193088 If a LabWindows/CVI popup panel is not active, subsequent popup panels may appear behind the original popup panel.
193403 The panel attribute ATTR_MOVABLE does not work with Aero enabled on Windows 7/Vista.
194174 Bitmaps with alpha channels, such as .PNG images, do not print correctly.
194970 Using string controls with right or center justification causes the cursor to appear in the wrong position when there are trailing spaces
197797 The strip chart cannot plot more than INT_MAX points.
216830 Loading a panel with an ActiveX control in a thread other than the main thread will fail.
243203 LabWindows/CVI file dialog boxes cannot open files accessed through the Libraries button on Windows 7.
231945 SetCtrlVal does not immediately redraw an LED to the new state.
217094 EVENT_MOUSE_POINTER_MOVE can nest until the stack overflows if ProcessSystemEvents is called from the event callback.
225134 Bitmaps obtained with the GetCtrlDisplayBitmap function cannot be used as menu images.
237405 The event EVENT_LEFT_CLICK_UP can be sent to a panel behind a modal dialog box.
238634 ActiveX controls aren't dimmed when ATTR_DIMMED is set to True.
256995 Deleting a tree item after hovering over it may generate a first chance exception.
255807 When manually sizing a panel with a text box, the error message "The attribute passed is not valid" may be displayed.
255934 Fonts may not scale correctly when using the panel option Scale Contents on Resize.
256628 In some cases, a ring control can display a menu that doesn't completely fit on the screen.
250654 A strip chart that has been scrolled prints as if it were not scrolled.
252100 The quality of images with transparency may deteriorate with repeated opening and closing of the associated UIR.
253696 Printing images with transparent backgrounds does not work correctly.
248368 Hidden table rows and columns can still be clicked on, making them reappear temporarily.
286276 The frame of the increment and decrement buttons on numeric controls may not draw entirely.
284842 The GetTableCellRangeVals and SetTableCellRangeVals functions do not work for string cell types in a 64-bit application.
276442 Displaying a file select popup panel from a panel with a tab control might disrupt the panel z-plane order.
276443 A tab inserted anywhere but the end of the list will use the wrong image.
276799 Numeric table cells do not coerce values when values are pasted from the clipboard.
281082 A strip chart legend may not be drawn correctly if it overlaps the strip chart plot area.
281083 The y-axis name of a strip chart control might be drawn incorrectly when the y-axis autoscales.
288389 The splitter control can disappear after is it dragged.
302494 Memory is leaked when calling GetScaledCtrlDisplayBitmap on graph control with ATTR_COPY_ORIGINAL_DATA set to 0.
303637 Scrolling strip charts can have inaccurate values for min and max due to rounding errors.
303721 Table row and column header separators do not line up with the row and column marker lines when Windows visual styles are enabled.
304541 The Run-Time Movable Control (movectrl.fp) custom control does not display a hand when moving numeric controls.
305258 GetScaledCtrlDisplayBitmap can hang for some scaling ratios.
306560 VAL_SIZE_TO_PICTURE can significantly degrade the resolution of pictures if the pictures must shrink.
298632 Full ticks are not consistently drawn for many numeric controls.
299688 Some items in the LabWindows/CVI status bar require a double-click to toggle, while others require a single-click.
293672 Some user interface controls do not draw Windows styles on mouse-over.
293859 The Floating Style attribute of a child panel can cause displayed panels to display as modal behind other displayed panels.
294159 <Ctrl-Left Arrow> and <Ctrl-Right Arrow> do not work correctly in text controls on multibyte versions of Windows.
292070 Passing TRUE to the RestrictDirectory parameter of FileSelectPopup does not completely restrict the directory to the initial directory.
37666 3TJ0IB7K Panels displayed with ATTR_WINDOW_ZOOM set to VAL_MAXIMIZE will not restore after showing the desktop.
328679 Graph legend items are highlighted after calling RecallPanelState under some conditions.
329406 LabWindows/CVI crashes when setting the Offset option for a graph if the Absolute Time Display Format is set to a very large number.
329461 Printing UIR files resizes the table control in the print output.
326106 If you save UIR files as older versions, LabWindows/CVI does not warn you that features that are unsupported in that version will not be saved.
313512 Ring control label/value pairs precision does not persist when changed.
314106 The x-axis of the digital graph displays improper divisions.
310781 The table control displays a gap between the table cells and the bottom and right edges of the control when resized.
311281 Graph controls display the x-axis name at an angle if you set the ATTR_XYNAME_FONT attribute to a metafont that rotates text.
312398 Deleting all lines from a text box control with no lines available to delete causes a nonfatal runtime error.
313765 The LabWindows/CVI Run-Time Engine may crash when unloading a DLL that contains a panel in a thread other than the main thread.
314344 Changing the panel title from a different thread can cause a hang.
316365 Panel toolbars are not fully discarded when created and discarded in a thread other than main.
318200 The Edit Tabbing Order dialog box does not allow you to modify the tabbing order of controls that are behind overlapping controls.
319561 SetCursorAttribute does not return an error when passed an annotation attribute.
322979 Drawing a filled shape on the canvas with a pen width greater than 1 causes the filling to exceed the shape's border.
329376 The graph legend does not always match the angle of text plots.
329411 User interface control labels appear to resize when switching from Windows XP to Windows Vista or Windows 7.
333163 The Choose Date/Time Value dialog box displays an error message for an invalid date three times.
334681 Setting the Label text in the Edit Tree dialog box to a string greater then 250 characters can crash LabWindows/CVI.
329405 Numeric control radix does not resize with control text size.
345272 Tree control may crash when more than 200,000 items are inserted.
363056 Floating point format in UI controls allows too many digits before automatically switching to scientific format.
337950 Graph zoom selection box leaves artifacts if a control is moved over the drawing region in between frames.
345703 Some controls do not print colors correctly in bitmap printing when set to black & white mode.
347056 Dragging the ring tank control value to change its fluid height at run-time may cause black lines to appear where the previous fluid height was.
347323 Changing digital graph line label and bus label programmatically does not update the control labels if the plot does not contain any data.
349832 The mouse wheel scrolls the wrong control while ring control menu is displayed.
350412 In some cases, the EVENT_LOST_FOCUS and EVENT_COMMIT events are not displayed in Operate mode when changing focus away from controls.
350752 A tree item tooltip continues to display when the cursor is over a tree item and another active window is in front of part of the tree item.
350944 The numeric control cannot have a transparent background.
345074 Passing an incorrect panel attribute to the GetPanelAttribute function causes a general protection fault.
346432 Child panels in a tab control do not resize when the tab is resized and Scale Contents on Resize is enabled.
347326 The digital graph control does not limit the Line Label and Bus Label values string size to 255 characters.
348756 The CVI GUI Localization Utility will not advance to the Right Y Axis of strip charts if the Next button is clicked.
349930 Mouse tracking is not aborted during a mouse click event if the control callback causes the panel to lose focus.
350416 ExcelRpt_WriteDataFromTableControl function does not support combo box, ring, or button cell types.
290770 Popup dialogs appear in the same location where they were located the last time the dialog appeared in that process.
309845 Tree control tooltip does not use the character set of the tree.
336312 Calling the GetCtrlVal function for the picture ring control may cause an "Assertion failed" error in the Event Viewer if the picture ring data type is set to " string (char *)".
337804 Changing the label of a tree item from the Label control or the Quick Edit Window does not update the corresponding entry in the Default Index option for that tree item.
341569 The index counts in the Default index option can have the wrong value if items are inserted in the tree out of order.
343989 Some Programmer's Toolbox functions do not support Lab Style controls.
352509 ATTR_XLOOSE_FIT_AUTOSCALING_UNIT attribute does not work well with log scales.
373393 Classic-style decoration controls that have rounded edges appear speckled.
379530 Opening a UIR file containing a tab control attached to a splitter control that is saved in LabWindows/CVI 7.1 causes an "Invalid control ID" error.
379767 UIR files saved in LabWindows/CVI 8.1 and earlier that contain a knob, dial, gauge, or meter can corrupt the environment memory when opened in LabWindows/CVI 8.5 or later.
388199 Passing the same index for the Item Index and the Relative Index parameters of the AreTreeItemsRelated function returns the incorrect value for some relationships.
275954 Setting the ATTR_FIRST_VISIBLE_LINE attribute does not cause a text box control to redraw in some cases.
386878 The DisplayImageFile function uses more memory than is necessary.
391657 The value of the eventData1 parameter is always 1 in a callback for an EVENT_COMMIT event of a graph cursor that is locked.
392640 Cannot duplicate panels with controls that are duplicated and attached to a splitter control.
396304 LabWindows/CVI might crash when running out of memory during a table copy operation.
403028 Changing the value of ATTR_INTERPOLATE_PIXELS can leave the plot with extraneous data.
413695 Radial controls do not resize all elements proportionally.

 

Known Issues

ID Known Issue
.NET and ActiveX
165495

Return
Installing an application that uses ActiveX controls to a clean machine might result in a runtime error.
This issue can occur if the Microsoft Visual C++ 2005 runtime is not on the machine before installation of the LabWindows/CVI application.

Workaround: Install the Microsoft Visual C++ 2005 SP1 redistributable package.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
174102

Return
Hidden LabWindows/CVI ActiveX Automation interface is visible in function panel tree
The _CVIAutomationServerInterface node should not be used.

Workaround: Regenerate the instrument using the per server option.

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
204719

Return
Wrappers generated for the Microsoft.JScript .NET assembly will not compile.

Workaround: Find all function parameters with the name small in the generated source and include files and rename the parameters to something like _small.

Reported Version: 8.0    Resolved Version: 2010    Added: 05/05/2010
217093

Return
LabWindows/CVI .NET components do not get installed if .NET 2.0 is installed.
LabWindows/CVI requires only .NET 1.1 SP1 to operate correctly.

Workaround: Install .NET 2.0 and repair the LabWindows/CVI installation.

Reported Version: 9.0    Resolved Version: 2010    Added: 09/17/2010
119213

Return
An exception can occur when inserting an image into a report created with WordReport.fp

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010    Added: 11/22/2010
44669
4HK7LF7K

Return
The WordRpt_SetHeader function might not always work as expected.
Embedding pictures in a header does not work.

Workaround: N/A

Reported Version: 8.5    Resolved Version: N/A    Added: 11/22/2010
283042

Return
A LabWindows/CVI ActiveX server can crash while shutting down if there are open client connections to the server.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2010 SP1    Added: 03/08/2011
283065

Return
LabWindows/CVI cannot generate wrappers for .NET Framework 4.0 assemblies.
The Create LabWindows/CVI .NET Controller dialog box cannot generate wrappers for .NET Framework 4.0 assemblies. When trying to create a wrapper for .NET Framework 4.0 assemblies, the error Error occurred while generating .NET controller code. The method or operation is not implemented. will be shown.

Workaround: Paste the following XML into a file named cvi.exe.config. Place this file next to cvi.exe in the LabWindows/CVI directory.

<?xml version="1.0"?>
<configuration>
<startup useLegacyV2RuntimeActivationPolicy="true">
<supportedRuntime version="v4.0"/>
</startup>
</configuration>

After you've done this, restart LabWindows/CVI.

Reported Version: 8.5    Resolved Version: 2012    Added: 03/08/2011
299606

Return
The LabWindows/CVI ActiveX Controller Wizard does not display all registered ActiveX servers.
Servers registered with paths of type REG_EXPAND_SZ are not listed.

Workaround: Manually browse to the server object containing a type library.

Reported Version: 7.1    Resolved Version: 2012    Added: 07/28/2011
313299

Return
CVI_AppGetLinesFromFile returns a string with maximum length of INT16_MAX characters.
The maximum puts too small of a limit on the amount of source code text that can be returned from a single call to CVI_AppGetLinesFromFile .

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 02/07/2012
361691

Return
The GetAllBreakpoints LabWindows/CVI ActiveX Server Interface function does not set numBreakpoints output parameter.
The variable remains uninitialized after the function call if it was not initialized before.

Workaround: Use the length of the breakpoint line numbers safearray output parameter.

Reported Version: 8.1    Resolved Version: 2013    Added: 07/20/2012
335556

Return
The Word Report WordRpt_GoToCell function will always go to the first column when used in a Microsoft Word 2007 file or later.

Workaround: Load an existing file saved as a Word 97-2003 document. Or, use the WordRpt_WriteToCell function with an empty string instead of the WordRpt_GoToCell function.

Reported Version: 8.5.1    Resolved Version: 2012    Added: 07/26/2012
376796

Return
Creating an AppDomain in .NET using the mscorlib.fp library causes a System.OutOfMemoryException to be thrown.
This issue occurs on Windows 8 or on a system with .NET 4.5 installed. Refer to KnowledgeBase Article 64GCHJUB: Out of Memory Exception when Using LabWindows/CVI Built TestStand User Interface with .NET 4.5 for more information.

Workaround: N/A

Reported Version: 9.0.1    Resolved Version: 2012 SP1    Added: 02/27/2013
345700

Return
The CA_InitActiveXThreadStyleForCurrentThread function return success even if it fails.
If the CA_InitActiveXThreadStyleForCurrentThread function is called and the threading model is already set to a model different from what is specified by the threadStyle parameter, the function still returns 0, which indicates that it succeeded. In this case, the function fails to set the threading model.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2012    Added: 08/05/2013
Analysis
140249

Return
NonLinearFitWithMaxIters may not return an error if performing the maximum number of iterations does not result in convergence.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
140913

Return
ThresholdPeakDetector has unexpected results when width is greater than 1.
The peakIndices parameter will have one additional value that is not a peak while the numberOfPeakIndices parameter will contain the correct number of peaks.

Workaround: Ignore the last value in the peakIndices parameter.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
156791

Return
Several Analysis Library function panels are incorrectly relying on AnalysisLibPowerOfTwo enum.
No values were assigned in the enum, and the values the compiler assigns are incorrect.

Workaround: Enter the actual power of two number and not the enum value.

Reported Version: 8.0    Resolved Version: 2009    Added: 05/05/2010
183434

Return
NonLinearFitWithMaxIters function does not return the best fit array when the maximum number of interations is exceeded.
NonLinearFitWithMaxIters also does not return the mean squared error.

Workaround: N/A

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
247895

Return
The threshold parameter in MultipleToneInfo, MultipleToneSignal, CxMultipleToneInfo, and CxMultipleToneSignal does not always work.
Tones can be returned with an amplitude higher than the specified threshold.

Workaround: Manually filter the returned tones to exclude tones with an amplitude greater than the threshold.

Reported Version: 8.0    Resolved Version: 2010    Added: 11/22/2010
362123

Return
Gamma, GammaC, and Beta functions compute regularized form, which is not accurately described in help.
The Gamma function actually computes the gamma function or the regularized incomplete gamma function. The GammaC function computes the regularized complimentary incomplete gamma function. The Beta function computes the beta function or the regularized incomplete beta function.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 07/18/2012
361840

Return
For values of x that are very large, sin (x) returns x instead of returning a number between -1 and 1.
This behavior occurs only for large values of x, such as 1e+20.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2013    Added: 07/20/2012
Compiler
120676

Return
Even with C99 enabled, some variables cannot be declared immediately following a switch statement.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 9.0.1    Added: 05/05/2010
127909

Return
Instrument drivers are marked for compilation with each configuration switch.
Normally, LabWindows/CVI only marks for recompilation those files that do not already have up-to-date object files for the current configuration in the cvibuild folder. Instrument files are the one exception to this.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
128921

Return
Incorrect compilation of code containing multiple anonymous inner struct members.
For instance, the elements of the bitfield of the following structure may not evaluate correctly:

typedef struct {
  union {
    struct {
      unsigned short flag1 : 1;
      unsigned short dummy : 3;
      unsigned short flag2 : 4;
      unsigned short flag3 : 4;
      unsigned short dummy2 : 4;
    };
    unsigned short all;
  } flags;
} flagset;


Workaround: N/A

Reported Version: 8.5    Resolved Version: 9.0.1    Added: 05/05/2010
129546

Return
Cannot use the Utility or Formatting and I/O Libraries and some Interface to Win32 API functions at the same time.
You can use one set of functions or the other but not both. The functions that conflict are the following: Formatting and I/O Library:
  • CloseFile
  • OpenFile
  • ReadFile
  • WriteFile
  • SetCommitMode
Utility Library:
  • GetSystemTime
  • SetSystemTime
  • Beep
  • CopyFile
  • DeleteFile
  • GetFileSize
  • GetFileTime
  • SetFileTime
  • inp
  • inpw
  • inpd
  • outp
  • outpw
  • outpd


Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
131800

Return
Too many initializers error when initializing incomplete array typedefs.

Workaround: Replace the typedef type with the explicit incomplete array declaration.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
132689

Return
LabWindows/CVI autocomplete feature does not work for nested struct array fields.
The following code demonstrates the problem:

struct A {
  int a[10];
  int b[10];
};

struct B {
  struct A sA[10];
  int c;
};

void main(void) {
  struct B sB[10];
  int i, j;

  // BUG: Type the following and you will get completion for struct A.
  sB[i].sA.
  // BUG: Type the following and you will NOT get completion for struct A.
  sB[i].sA[j].
}

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
134066

Return
Linking a project can fail with an Out of Memory error in very rare circumstances,

Workaround: One workaround to try is adding a handful of empty functions to one of your source files. This will change the number of symbols in your final binary and mask the bug that causes this Out of Memory error.

Reported Version: 8.5.1    Resolved Version: 9.0.1    Added: 05/05/2010
134406

Return
The Interface to Win32 API fails to compile with third-party compilers if C99 is enabled.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
134407

Return
Build warnings are reported when compiling the Interface to Win32 API with third-party compilers.
These errors occur because LabWindows/CVI defines some pragmas that are specific to LabWindows/CVI in the Win32 API header files (basetsd.h and winnt.h). Compilers that do not recognize these pragmas report errors.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
135927

Return
ActiveX wrappers fail to compile when LabWindows/CVI uses the Borland compatibility mode.
You may receive the link error Undefined symbol '_IID_IDispatch' referenced in "<module name>".

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
136156

Return
When passing 64-bit integers to a 32-bit integer parameter in a function call, other parameters can end up with incorrect values.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
138186

Return
Function pointers for functions without parameters require void keyword in parameter list.

Workaround: Instead of declaring a function pointer like this:
typedef int (*FuncPtr)();
Declare it like this with the void keyword:
typedef int (*FuncPtr)(void);

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
139419

Return
Including WSPiApi.h and WS2tcpip.h can cause Interface to Win32 API compile errors.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
145895

Return
Auto completion of structs does not handle arrays of structs inside other structs correctly.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
152421

Return
The compiler can crash when very large arrays are initialized with small string literals.
If you initialize a large char array with a small string literal like the following:

char buf[500000] = "";

compilation may crash.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
152423

Return
Arrays initialized with string literals are not completely filled with zero bytes.
If you initialize a char array with a smaller string literal such as the following:

char buf[10] = "";

the bytes that are not explicitly initialized should be zero, but they are not.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
152425

Return
No error reported when arrays are initialized with string literals that are too large.
Initializations such as the following:

char A[3] = "hello";

should report an compile error, but they do not.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
158055

Return
Cannot include windows.h in the Interactive Execution window.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
162554

Return
The non-fatal runtime error "Local was referenced before being initialized" may occur incorrectly.
The following code recreates this incorrect non-fatal runtime error:

void foo (const void *buffer) {}

void main() {
  struct {
    int x;
    double y;
  } buf[1];
  buf[0].x = 0;
  buf[0].y = 0;
  foo(buf);
}

Workaround: Turn off Detect uninitialized local variables at run time in the Build Options dialog box.

Reported Version: 7.1.1    Resolved Version: 2009    Added: 05/05/2010
162814

Return
Cannot embed a type library in a DLL if the function panel has a custom data type.

Workaround: N/A

Reported Version: 8.0.1    Resolved Version: 2009    Added: 05/05/2010
165697

Return
The last initialized global or static local variable in a file may not be fully allocated.
This can occur only if the total storage of global or static variables exceeds 16384 bytes.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
168621

Return
Using an object file built with precompiled headers can lead to link errors.
Using an object file built while the build configuration was set to Debug in a Release project can cause link errors. Debug symbols from the precompiled headers are added into the created .obj file.

Workaround: Only build object files (Options»Create Object File) when the build configuration is set to Release.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
169037

Return
Linking against mixed-mode .NET DLLs may cause LabWindows/CVI applications to crash.

Workaround: Dynamically load the entry points in the mixed-mode DLL using LoadLibrary and GetProcAddress.

Reported Version: 8.5    Resolved Version: 2010    Added: 05/05/2010
177794

Return
LabWindows/CVI can crash when compiling a complex mathematical computation that is not assigned to a variable.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2009    Added: 05/05/2010
186965

Return
Compile.exe crashes on project with "Add type library resource to DLL" option enabled.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
201360

Return
Incorrect usage of designated initializers (C99) may result in a hang in the LabWindows/CVI environment during compilation.
When compiling in debug mode, the following code snippet and others like it will hang the LabWindows/CVI environment.

typedef struct {
  char *s;
  int b;
} foo;
// note the initialization of undeclared member a
foo f = { .s = "bar", .a = 2, .b = 3 };


Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009 SP1    Added: 05/05/2010
203051

Return
Some constant array size expressions may be incorrectly reported as variable-length in C99 mode.
When building with C99 extensions enabled, size expressions involving the ternary conditional operator are treated as non-constant expressions. This can result in compiler errors reporting that a variable-length array has been illegally declared..

Workaround: Disable C99 extensions.

Reported Version: 9.0    Resolved Version: 2010    Added: 05/05/2010
206504

Return
Building debug versions of very large projects may cause LabWindows/CVI to run out of memory.

Workaround: Right-click files that do not need to be debugged and select Enable 'O' Option. This option removes debugging information from the compiled object file, resulting in a much smaller memory footprint.

Reported Version: 9.0    Resolved Version: 2013    Added: 05/05/2010
222105

Return
Using XCOPY in a build step to copy a file over an existing file can break subsequent builds.
Updating the command to specify the /Y option will not work until the cmd.exe and xcopy.exe processes have been manually stopped using the Task Manager.

Workaround: Specify the /Y option to overwrite existing files without prompting.

Reported Version: 9.0    Resolved Version: 2010    Added: 09/17/2010
232139

Return
LabWindows/CVI can recompile a source file if the timestamp of a .obj file changes, but there has been no change to the corresponding source file.
LabWindows/CVI should only check to make sure the timestamp on the .obj file is later than the corresponding source file. The current behavior can cause problems on high latency network drives, or if other programs, such as anti-virus programs, modify object files.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 09/17/2010
232194

Return
LabWindows/CVI ignores invalid symbols in macro names.
For example, LabWindows/CVI reports a duplicate macro definition for this code:

#define a$aaa    10
#define a$bbb    20

LabWindows/CVI ignores the invalid symbol ($) and everything that follows it.

Workaround: Do not use invalid symbols in macro names.

Reported Version: 8.0    Resolved Version: 2010    Added: 09/17/2010
232196

Return
LabWindows/CVI does not consider '$' to be a valid character in a symbol identifier.
The C standard doesn't require that this character be supported, but some compilers do support it.

Workaround: Do not use the '$' character in a symbol identifier.

Reported Version: 8.0    Resolved Version: 2010    Added: 09/17/2010
232258

Return
You cannot use word "defined" in a macro definition.
For example, the following code will not compile:

#define MY_MACRO defined(_CVI_)
#if MY_MACRO
int i;
#endif


Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 09/17/2010
237998

Return
Cannot link some uuid.lib symbols in a 32-bit program.

Workaround: N/A

Reported Version: 9.0    Resolved Version: N/A    Added: 11/22/2010
240722

Return
Including strsafe.h causes compilation errors.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010    Added: 11/22/2010
284771

Return
When using third-party compilers, linker errors refer to temporary object files.
If link errors are found for multiple modules, the link errors will all be reported in the same temporary object file.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 03/04/2011
275934

Return
Including the http.h Win32 API header file can result in missing function prototype compile errors.
If you have enabled the Require function prototypes option in the Build Options dialog box, including http.h can result in a missing function prototype compilation error.

Workaround: If the function reported as missing a prototype does not take any parameters, ensure the keyword void is added to the parameter list in the function declaration.

Reported Version: 9.0    Resolved Version: 2010 SP1    Added: 03/09/2011
276524

Return
compile.exe may report link errors for National Instruments libraries.
If the LabWindows/CVI development environment has not been launched, compile.exe might report link errors for some libraries, such as the LabWindows/CVI SQL Toolkit or the Programmer's Toolbox.

Workaround: Run LabWindows/CVI before using compile.exe.

Reported Version: 7.1    Resolved Version: 2012    Added: 03/09/2011
277739

Return
Compiling a file with a syntax error can cause LabWindows/CVI to crash.
A very specific type of syntax error can cause LabWindows/CVI to crash. For example, compiling a file that contains the following code will cause LabWindows/CVI to crash.

void a(b, int c) { int d = b; }

Workaround: Remove the syntax error before recompiling.

Reported Version: 5.0    Resolved Version: 2013    Added: 03/09/2011
ID Known Issue
309184

Return
compile.exe can crash when passed a project path that can't be found on disk.
If you pass a .prj file and one or more .c files to compile.exe and the .prj file cannot be found on disk, compile.exe will crash.

Workaround: Ensure the .prj file can be found.

Reported Version: 7.1    Resolved Version: 2012    Added: 07/26/2011
309627

Return
LabWindows/CVI can crash when compiling some K&R style functions.
This crash occurs only if you disable the Require function prototypes option. For example, if you attempt to compile a file with the following code, LabWindows/CVI crashes.

void foo (a)
int a(enum {x,y});
{
}


Workaround: Enable the Require function prototypes option and add a prototype for the function.

Reported Version: 9.0    Resolved Version: 2012    Added: 07/28/2011
295246

Return
A source file containing a very large array of structures might fail to compile.
For example, if you declare an array of 5000000 NIComplexNumber structures, LabWindows/CVI will fail to compile the file without any error message.

Workaround: Either:
  • Set the Debugging level option (Options»Build Options) to No run-time checking.
  • Define the array in a new source file. Right-click the new source file in the project tree and select Enable .Obj Option.


Reported Version: 8.1    Resolved Version: 2013    Added: 07/30/2011
327730

Return
LabWindows/CVI crashes during compilation when a very long variable name is used.
Variables with names of roughly 500 characters or longer will cause LabWindows/CVI to crash when compiling.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 01/09/2012
335358

Return
Using the bit shift operator multiple times on the same line of code produces incorrect results for 64-bit integers in a 32-bit application.
This issue occurs when the result of one bit shift is used for another bit shift in the same line of code. For example:  unsigned int a = 1, b = 62; unsigned long long result = 1ULL << a << b;

Workaround: Separate the two bit shift operations into two separate lines of code.

Reported Version: 9.0    Resolved Version: 2012    Added: 02/14/2012
318253

Return
False positive user protection error when using an Interface to Win32 API struct.
N/A

Workaround: Refer to the Disabling User Protection section in the LabWindows/CVI Help. Access this section through the Table of Contents by selecting Programmer Reference»LabWindows/CVI Compiler Overview»User Protection»Disabling User Protection.

Reported Version: 7.0    Resolved Version: 2012    Added: 02/15/2012
363456

Return
Compiler warning when using __int64 in switch statement expression in a 32-bit configuration.
"Warning: Conversion from '__int64' to 'long' might lose data" can occur if the switch expression is of type __int64 and all of the case expressions are of type int or long. The conversion does not actually occur and the warning can be ignored.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012 SP1    Added: 07/18/2012
359304

Return
The modulo operation with 64-bit integers in a 32-bit configuration may produce incorrect results.
The result will likely be incorrect if the second operand is negative.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2013    Added: 07/22/2012
368271

Return
When using an external optimizing compiler, compiler defines that are defined to strings with escaped quotations are not passed to the external compiler as strings.
For example, adding the following define to the Compiler Defines section in the Build Options dialog box: /DMYDEFINE="\"abc def\"" sends the following define to the third-party compiler: /DMYDEFINE="abc def"

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012 SP1    Added: 02/21/2013
404327

Return
LabWindows/CVI may crash when changing the default calling convention of a library after it has been built.

Workaround: Re-open LabWindows/CVI and change the calling convention.

Reported Version: 7.0    Resolved Version: 2013    Added: 08/05/2013
Debugging
127318

Return
Calling some inifile.fp functions while the Programmer's Toolbox is compiled from source code can result in a false report of leaked resources.
The temporary file ini$$0.tmp may be reported as a leaked resource.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
134586

Return
Erroneous user protection error when accessing member of a multidimensional array of structs/pointers.

Workaround: Use one of the following workarounds:
  • Set the Debugging level in the Build Options dialog to box No run-time checking . This requires no changes to code, but gives up the benefit of the run-time checks.
  • Call SetBreakOnProtectionErrors in specific files or in the body of certain functions to locally avoid breaking/terminating execution when these errors are generated.


Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
137735

Return
The Source Code Browser does not retain all its settings when a file is recompiled.
You must browse to the variable again to see the correct display.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
139139

Return
Viewing memory as HEX longs (64-bit) in the Memory Display window causes all values to turn red.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
155604

Return
Adding a watch expression that references a variable declared in block scope can hang the program when it is debugged.

Workaround: N/A

Reported Version: 8.5.1    Resolved Version: 2009    Added: 05/05/2010
177188

Return
LabWindows/CVI debugger can crash when using memcpy to copy data from a const struct array.

Workaround: Remove the const keyword from the array declaration.

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
179034

Return
Obtaining a non-existent attribute with CVIXMLGetAttributeByName results in a false report of leaked resources.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
184979

Return
Breakpoint pass counts are off by one.
For a pass count of n, LabWindows/CVI breaks on the nth pass, instead of the nth + 1 pass.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2009    Added: 05/05/2010
189661

Return
Variables window does not always show a variable declared in for-loop scope.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
217295

Return
AppendString might work incorrectly when debugging a LabWindows/CVI program.
If you use toolbox.obj as the program file for the Programmer's Toolbox instrument, the debug information for the size of the pointer reallocated by AppendString will be incorrect, which may lead to errors from functions such as strlen.

Workaround: Attach toolbox.c as the program file for the Programmer's Toolbox instrument.

Reported Version: 7.1.1    Resolved Version: 2010    Added: 09/17/2010
255342

Return
Remote debugging can hang when debugging DLLs with DllMain.

Workaround: Move DllMain to a source code module that is not compiled with debug info.

Reported Version: 8.0    Resolved Version: 2013    Added: 11/18/2010
257782

Return
The Resource Tracking window does not track thread local variable handles.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010 SP1    Added: 11/18/2010
247337

Return
Watchpoints for nested structures may show incorrect values.
The value displayed in a tooltip might also be incorrect.

Workaround: View the value of the variable in the Variables window.

Reported Version: 9.0    Resolved Version: 2010    Added: 11/22/2010
285461

Return
Attaching the LabWindows/CVI debugger to a C++ DLL might result in significant performance degradation.
If you are debugging a process that calls into a C++ DLL, significant performance degradation might occur. This performance degradation has occurred for C++ DLLs that throw many exceptions or create and destroy large STL maps.

Workaround: There is no workaround while debugging, but there is no performance degradation while running outside of the LabWindows/CVI debugger.

Reported Version: 7.0    Resolved Version: 2013    Added: 03/03/2011
255345

Return
TDMS_CloseFile can take a long time to complete when the LabWindows/CVI debugger is attached.
If your TDMS file contains many channels, a call to TDMS_CloseFile can take a very long time. The more channels you have, the longer the call can take. This occurs only when the LabWindows/CVI debugger is attached. This is related to Known Issue 285461.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2013    Added: 03/10/2011
278151

Return
A breakpoint with a pass count and a condition will never break execution as a result of the pass count.
If a breakpoint has both a condition and a pass count, the pass count will be ignored. As a result, if the condition is never met, the breakpoint will never break execution.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 03/23/2011
298184

Return
Non-fatal user protection errors can sometimes display only the message &%%s&.
This can happen when there is a mismatch in the release vs. debug build configuration between a LabWindows/CVI EXE and its DLLs.

Workaround: Ensure all LabWindows/CVI binaries in a process are either in debug configuration or release configuration.

Reported Version: 7.1    Resolved Version: 2010 SP1    Added: 07/28/2011
294217

Return
The Edit Breakpoint dialog box incorrectly maintains a reference to old files.
If you place breakpoints in one workspace and then debug a project, the source files those breakpoints were placed in will not be removed from the Edit Breakpoint dialog box when a new workspace is loaded.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 08/01/2011
37498
44K3HK07

Return
Variables defined inside of a block statement cannot be added to the Watch window.
For instance the variable a in the following code cannot be added to the Watch window.

void foo (int var)
  if (var == 0) {
    int a;
    a = var;
  }
}

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 08/02/2011
326213

Return
The Go to Line button causes an internal assert to be triggered.
When execution is suspended on a breakpoint, pressing Go to Line in the Breakpoints dialog box for a breakpoint that has a valid location but an invalid condition causes an assert to be triggered.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 01/09/2012
316246

Return
LabWindows/CVI changes foreground lock timeout to 0 when debugging.
When debugging an application, the debugger changes the HKEY_CURRENT_USER\Control Panel\Desktop\ForegroundLockTimeout registry key to 0. This is necessary to control which window is in the foreground when debugging. The debugger should restore the registry key to its previous state when it is done debugging.

Workaround: N/A

Reported Version: 7.1    Resolved Version: 2012    Added: 02/08/2012
322203

Return
If you change a breakpoint due to an invalid condition while you are debugging, LabWindows/CVI ignores the next breakpoint.
If your code contains a breakpoint with an invalid condition followed by another invalid breakpoint (either with an invalid condition or set on a line containing no executable code), LabWindows/CVI displays the Invalid Condition dialog box for the first breakpoint. If you make the condition valid and click Replace or click Delete to delete the breakpoint, LabWindows/CVI ignores the next breakpoint.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 02/09/2012
324351

Return
Canceling from the Invalid Breakpoint dialog box causes the LabWindows/CVI debugger to ignore all remaining breakpoints and continue execution.
If you have a breakpoint with an invalid condition when you begin debugging, LabWindows/CVI displays the Invalid Condition dialog box for that breakpoint. However, if you click Cancel in this dialog box, LabWindows/CVI resumes execution of the program. All other breakpoints following this breakpoint will be skipped and debugging will continue.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 02/09/2012
324829

Return
LabWindows/CVI crashes while debugging when adding a conditional breakpoint to the Interactive Execution window if the window doesn't contain any executable code.
N/A

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 02/10/2012
325547

Return
Error message in the Invalid Condition dialog box may overflow text region.
When debugging and a breakpoint with an invalid condition is hit, the Invalid Condition dialog box opens. Replacing the condition with a longer but still invalid condition causes the error message to be longer, but the dialog box does not expand to accomodate the longer message.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 02/10/2012
333287

Return
Cursor does not change back to arrow after operating the splitter in the Watch Window while debugging.
This occurs only when debugging an application and execution is not suspended. Similar behavior occurs for both the vertical and horizontal splitters.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2012    Added: 02/15/2012
353320

Return
Attempting to edit a "??" entry in the Memory window causes an error.
In LabWindows/CVI 2009 and earlier the error is "Cannot write to address <address*gt;" and then the ADE may crash. In LabWindows/CVI 2010 and later, the error is "A custom control callback has raised an exception" and the ADE does not crash.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 07/20/2012
358560

Return
Function name is not reported in Break On Library Errors message.

Workaround: N/A

Reported Version: 7.1    Resolved Version: N/A    Added: 07/22/2012
335983

Return
Tooltip for symbol values during debugging may appear on top of the editor's scrollbar.

Workaround: N/A

Reported Version: 8.0    Resolved Version: N/A    Added: 07/24/2012
370519

Return
The LabWindows/CVI environment crashes when setting a string in the Array Display window to hexadecimal format while debugging a LabWindows/CVI application.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012 SP1    Added: 02/21/2013
378420

Return
The CNVGetFolders and CNVGetVariables functions return string arrays that show the incorrect number of elements while debugging.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2013    Added: 02/22/2013
Development Environment
126050

Return
tmpdir registry value is not used when backing up files.
The registry key HKLM\SOFTWARE\National Instruments\CVI\<version>\tmpdir should be able to specify what directory temporary files are saved in. However, this key is not used.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
127036

Return
LabWindows/CVI may display repeated save prompts if a project file path is made invalid.
If files LabWindows/CVI is using are moved on disk while they are open in LabWindows/CVI, you may receive multiple prompts to save the files.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
127953

Return
Closing a workspace may not remove all the files associated with a workspace.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010    Added: 05/05/2010
129695

Return
LabWindows/CVI can crash on exit after TestStand executes code modules in an external instance of LabWindows/CVI.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 9.0.1    Added: 05/05/2010
130204

Return
Multiple file search does not ignore invalid paths when searching only a specific set of files.
When searching multiple files in LabWindows/CVI, if you choose not to search an entire folder by unchecking the Search in Folders checkbox, LabWindows/CVI still tries to validate the path in the dimmed Directory control. If that path is not valid, LabWindows/CVI does not proceed with the search.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
131218

Return
The Edit Item dialog box of a tree control shows an incorrect description of the image name.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
133845

Return
Table row labels cannot be sized when the column labels are not visible and vice-versa.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
134049

Return
User Interface Editor does not retain the awareness that it should save the .uir in an older format.
If you override the .uir format when you save a .uir file, LabWindows/CVI does not remember this. Therefore, the next time you save the .uir file using <Ctrl-S>, it will use the default format instead. To continue saving in the different format you'll have to use the Save As option and manually change the ring selection each time.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
135900

Return
The Workspace window title bar does not show Aero transparency.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
136241

Return
Attempting to run code in a released Interactive Execution window runs the project instead.
Pressing the Run arrow on the toolbar when the Interactive Execution window is released runs the currently active project instead of the code in the Interactive execution window.

Workaround: Confine the Interactive Execution window.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
136293

Return
LabWindows/CVI can crash after removing from the workspace a project that uses a third party compiler.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
140209

Return
Cannot change coordinates of a control label in the User Interface Editor if the control is in a tab page.
This bug occurs if you select only the control label and not the entire control.

Workaround: Select the entire control to move the label.

Reported Version: 8.5.1    Resolved Version: 9.0.1    Added: 05/05/2010
149012

Return
Cannot list ViInt64 attributes in function panels.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
154794

Return
Web links in the Help menu do not work when .html files are not associated with a Web browser.
If .html files are not associated with a Web browser, but are instead associated with a program like notepad.exe, the links will not work.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
156166

Return
Cut Line does not work correctly with a collapsed block of code.
The cursor will jump to the top of the source file, and the editor will not redraw for a period of time.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
156975

Return
The User Interface Editor prompts you to assign constant names when backing up files.
If any of your controls, panels, menu bars, or menu items have a blank constant name, a dialog box displays every time the *.uir file is backed up.

Workaround: Make sure all of your UI objects have constant names.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
157568

Return
Go to Next Reference does not cycle through all references of a variable or a function in other files.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
162197

Return
Help tooltip for the Run button in the toolbar is incorrect after running the Interactive Execution window.

Workaround: N/A

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
166027

Return
Launching the Icon Editor results in the error Value is invalid or out of range.

Workaround: Load the icon editor project (samples\apps\iconedit\iconedit.prj), set the configuration to Release, and rebuild the project.

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
168302

Return
Numeric float-type function panel controls cannot be added through automation.

Workaround: Call FPGenSetParamDisplayFormat to set the correct display format for the control after creating the control but before inserting the function in the tree.

Reported Version: 5.0    Resolved Version: 2009    Added: 05/05/2010
168426

Return
Using an RT target originally configured by browsing the network can result in "The target machine is not connected to the network" errors.

Workaround: Manually enter the IP address of the RT target instead of selecting it from the browse list.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
172750

Return
The LabWindows/CVI GUI Localization Utility preview does not work correctly with non-native character sets.
If the .uir file is set to the Native character set, it will not correctly preview character sets other than the native character set.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
179291

Return
Labels for numeric slide controls do not redraw if the display format is set to Scientific or Engineering, and the data type is then changed to int64 or unsigned int64.
If you try to operate the control in the LabWindows/CVI User Interface Editor while the label is not drawn, LabWindows/CVI may crash.

Workaround: Set the desired data type before setting the format.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
182743

Return
Editing a panel that has a control with a label of exactly 50 characters can cause a crash.

Workaround: Shorten or lengthen the control label.

Reported Version: 6.0    Resolved Version: 2009    Added: 05/05/2010
185942

Return
Cannot add empty function panel file to a project.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2009    Added: 05/05/2010
189843

Return
The Perforce 2009.1 client may cause LabWindows/CVI 2009 to crash.
LabWindows/CVI may crash when the Perforce SCC DLL is unloaded.

Workaround: Upgrade to the Perforce 2009.2 client.

Reported Version: 8.1    Resolved Version: N/A    Added: 05/05/2010
193526

Return
Adding a watch expression that already exists fails silently.
The existing watch expression should be made visible in this case.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2009    Added: 05/05/2010
194053

Return
LabWindows/CVI can display multiple prompts to check out a project file from source code control.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2009    Added: 05/05/2010
198012

Return
Dragging binary files, such as a static library, between projects may result in an exception.
If this is done, LabWindows/CVI may confuse what files are in what projects. If this happens, save the current workspace and restart LabWindows/CVI.

Workaround: Do not drag binary files between projects.

Reported Version: 8.1    Resolved Version: 2010    Added: 05/05/2010
201055

Return
Type library generation may fail if FP control names contain ODL keywords.
When generating type libraries, FP control names are converted to lowercase, which causes problems for names such as "Auto" and "Register", which become ODL keywords "auto" and "register".

Workaround: Modify the names of the FP controls.

Reported Version: 8.0    Resolved Version: 2010    Added: 05/05/2010
203337

Return
The DirectShow API in the full Interface to the Win32 SDK is unusable.
This API requires multiple header files that are not included in the LabWindows/CVI installation.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010    Added: 05/05/2010
207820

Return
Modifying a menu bar font can hide elements of the Edit Menu Bar dialog box.
If you change a menu bar font size to be very large, the Customize Font button will be hidden by the menu bar preview the next time you try to edit the menu bar.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 05/05/2010
167925

Return
Showing available attributes may crash LabWindows/CVI.
For more information, see KB 526B6OXU.

Workaround: Follow the instructions described in KB 526B6OXU.

Reported Version: 9.0.1    Resolved Version: 2009    Added: 09/17/2010
172157

Return
Diffing two files can cause window contents to draw in the wrong window.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009 SP1    Added: 09/17/2010
237395

Return
Dragging a file from the Open File dialog box to the LabWindows/CVI Project Tree can cause LabWindows/CVI to crash.

Workaround: Open files through the Open button of the dialog box, not by dragging files from the dialog box to the Project Tree.

Reported Version: 8.1    Resolved Version: 2010    Added: 09/17/2010
258505

Return
Selecting "Create New File" on a project folder results in an invalid file.
If you right-click a folder in a LabWindows/CVI project and select Create New File, you will not be able to create an Empty file.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2010 SP1    Added: 11/17/2010
254788

Return
LabWindows/CVI doesn't remember source line position of the first file opened until a second file is opened.
If you scroll down in the first file you open in LabWindows/CVI before you open another file and then close the first file and reopen it, the file will be scrolled back to the top of the file.

Workaround: Open a second file.

Reported Version: 7.1    Resolved Version: 2010    Added: 11/18/2010
256142

Return
Copying collapsed tree items with images in the User Interface Editor can cause LabWindows/CVI to crash.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2010    Added: 11/18/2010
252825

Return
The Variables window might flicker when debugging a DLL built using LabWindows/CVI.

Workaround: N/A

Reported Version: 8.5.1    Resolved Version: 2010    Added: 11/19/2010
253907

Return
If Perforce is configured with two workspaces that have different root paths, Perforce SCC integration will fail in LabWindows/CVI.

Workaround: Ensure all workspaces have the same root path.

Reported Version: 9.0    Resolved Version: 2010    Added: 11/19/2010
211495

Return
LabWindows/CVI function panel help is missing stylesheets and images in multibyte operating systems.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 11/22/2010
ID Known Issue
240876

Return
Adding a space to the Menu bar constant prefix in the Edit Menu Bar dialog box causes the dialog box to close without warning.
None of your changes will be applied.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2010    Added: 11/22/2010
241552

Return
LabWindows/CVI does not support offline files in Windows Vista and Windows 7.
If you do attempt to work with files in offline mode from LabWindows/CVI, your file might be deleted when you reconnect to the network.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2010    Added: 11/22/2010
248824

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Using replace for a text selection may not always work.
The replace operation will only miss replacements on the last line of a selection and only if earlier replacements on that line push later matches on that line outside the range of the original selection. However, the same issue can occur on any line in the selection if the selection is made in column selection mode.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2010    Added: 11/22/2010
276026

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LabWindows/CVI can generate code into the wrong source file without asking for confirmation.
The following steps will reproduce this issue:
  1. Create a new user interface project from template.
  2. Browse to a random example and open a source file from the random example.
  3. Open the UIR in the editor (but don't open the source file).
  4. Add a button with a callback to the UIR from the project.
  5. Select Code»Generate»Control Callbacks to generate the control callback.

Notice the callback and header files were placed in the unrelated example's source file.

Workaround: Ensure you always have zero or at least 2 source files open when generating code.

Reported Version: 8.5    Resolved Version: 2012    Added: 11/24/2010
283527

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LabWindows/CVI carets ignore Windows keyboard settings.
Through the Keyboard Settings applet in the Windows Control Panel, you can adjust the blink rate of the caret, or you can disable blinking altogether. LabWindows/CVI ignores this setting.

Workaround: N/A

Reported Version: 5.0    Resolved Version: 2012    Added: 03/04/2011
283634

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The LabWindows/CVI Visual Studio Conversion Wizard fails for some projects that reference National Instruments modular instruments drivers.
If the modular instruments driver references any files relative to IVI Standard Root, IVI Standard Root 64-bit, VXIPlug&Play 64-bit, or VXIPlug&Play kbase 64-bit, the LabWindows/CVI Conversion Wizard fails.

Workaround: Open the LabWindows/CVI .prj file in a text editor and change entries that look like the following:

Path Is Rel = True
Path Rel To = "IVI Standard Root"
Path Rel Path = "Drivers/niRFSG/niRFSG.fp"
Path = "/c/Program Files/IVI/Drivers/niRFSG/niRFSG.fp"

You should change to:

Path Is Rel = False
Path = "Full path to <niRFSG.fp>"

Note that values in project files are limited to 82 characters (including the quotes), and if the path is going to exceed that amount, you'll need to split up the path into multiple lines.

Reported Version: 8.5    Resolved Version: 2010 SP1    Added: 03/04/2011
282253

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Data tooltip is too small to hold negative zero floating-point values.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 03/09/2011
289949

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Using an import library generated by MinGW results in "Bad COFF Library Member Header" error message.

Workaround: Open the header file that contains the function prototypes for the DLL in LabWindows/CVI. Then use the Options»Generate DLL Import Library menu item to generate an import library for the DLL.

Reported Version: 8.5    Resolved Version: 2013    Added: 03/21/2011
289314

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User-defined types always receive an asterisk when used as output types in function panels.
For instance, if you define a custom type as
typedef char[256] String255;
you would not want it to have an asterisk appended to it when used as an output type.

Workaround: N/A

Reported Version: 6.0    Resolved Version: N/A    Added: 03/24/2011
299674

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Pasting unicode text into the LabWindows/CVI Source window can cause LabWindows/CVI to crash.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010 SP1    Added: 07/28/2011
295507

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Undoing after hiding and showing panels can cause LabWindows/CVI to crash.
The following steps will result in LabWindows/CVI crashing:
  1. Hide a panel containing a control.
  2. Show the panel.
  3. Move a control on the panel.
  4. Undo twice.


Workaround: N/A

Reported Version: 5.5    Resolved Version: 2012    Added: 07/30/2011
295654

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Building a project with the same name as a previously loaded project can cause LabWindows/CVI to crash.
This crash can occur if you complete the following steps:
  1. Work on one project.
  2. Unload the project and delete all of its files.
  3. Create a new project with the same name.
LabWindows/CVI can crash when you try to build the second project.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 07/30/2011
296380

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EVENT_SORT does not appear in the User Interface Editor.
If you interactively sort tree items in the User Interface Editor, the only event that appears in the status bar is EVENT_GOT_FOCUS. EVENT_SORT does not appear.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 07/30/2011
296381

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You cannot use the Edit Text Tool to edit the last cell in a table column.
If you click <Enter> after editing the last cell, it looks as if the value that you entered has been committed, but if you change to operate mode, or if you click on a different cell, you'll notice that the changes have been lost.

Workaround: Instead of clicking <Enter>, click a different cell instead. Or, use the Edit Table dialog box instead of the Edit Text Tool to enter values in edit mode.

Reported Version: 8.0    Resolved Version: 2012    Added: 07/30/2011
294281

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Making a change to a project that is under source code control in LabWindows/CVI does not result in checking out the project.
LabWindows/CVI does not acknowledge that the project has been checked out after making a change. This means that you are unable to save the project.

Workaround: Close and re-open the project. Then make your changes.

Reported Version: 8.5    Resolved Version: 2012    Added: 07/31/2011
294282

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Files added to a project cannot be added to source code control.
When you add a file to a project under source code control (SCC), a dialog box will be shown asking if you want to add the file to SCC. If you select yes, you will be shown the file checkout dialog, but it is empty.

Workaround: Close and re-open the project. Then add the file to SCC.

Reported Version: 9.0    Resolved Version: 2012    Added: 07/31/2011
294650

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Undo in the User Interface Editor can change the z-plane order of controls.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 07/31/2011
294008

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New files added in the Edit Project dialog box do not use the Project Tree Font.
If you use a non-standard font for the Project Tree Font and add files to a project in the Edit Project dialog box, the new files will be drawn with the wrong font.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 08/01/2011
328823

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Toolbox.c and toolbox.h are not added to a Microsoft Visual Studio project if LabWindows/CVI is not run at least once after installation.
N/A

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 01/09/2012
329035

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LabWindows/CVI Conversion Wizard does not transfer 'Compile with precompiled include file' setting to 'Precompiled Headers' setting in Microsoft Visual Studio.

Workaround: N/A

Reported Version: 9.0    Resolved Version: N/A    Added: 01/09/2012
331534

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The scroll bars in the User Interface Editor do not appear when changing the panel size using the cursor.
When you expands a panel to fill the User Interface Editor using the cursor and click the inside edge of the border of the panel, the panel border may be partially outside the editor. In this case the scroll bars do not appear and part of the panel is inaccessible.

Workaround: Move the panel and the scroll bars will appear properly.

Reported Version: 8.0    Resolved Version: 2012    Added: 01/09/2012
332047

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LabWindows/CVI stops responding while searching for an inaccessible network location.
When LabWindows/CVI is searching for a file at a network location that is not available, the environment stops responding.

Workaround: The search times out after about 2 minutes and the environment will resume. Avoid attempts to access network locations that may not be available.

Reported Version: 8.5.1    Resolved Version: N/A    Added: 01/10/2012
311356

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Changes to the font persist in the Font dialog box when the action is canceled.
If you make changes in the Font dialog box, but cancel your changes, the changes are not applied. However, if you open the Font dialog box again, the changes will still be active in the dialog box and will be applied if you then click OK. This behavior does not affect changes to the Source Window font.

Workaround: N/A

Reported Version: 7.1    Resolved Version: 2012    Added: 02/06/2012
311364

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Function name displays twice in the function prototype tooltip when the return value is const or volatile.
N/A

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2013    Added: 02/06/2012
316626

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The physdemo.cws example uses functionality that is removed with Security Update 5Q5FJ4QW.
The physdemo.cws example is not installed with LabWindows/CVI 2010 SP1 or later.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 02/09/2012
321793

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Adding multiple files with the same name in the Edit Project dialog box can cause LabWindows/CVI to crash.
This behavior can occur if you use the Edit Project dialog box to add two files to the project with the same filename but different paths. When you select OK to confirm the changes, a warning will appear stating that a file with the same name already exists in the project. If you remove the duplicate file and click OK again, the development environment will crash.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012    Added: 02/09/2012
325813

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The Replace File in Project option crashes the development environment if a file with same base name is specified.
Replacing a file in the Project Tree with another file that has the same base name using the Replace File in Project context menu option causes the development environment to crash.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012    Added: 02/10/2012
326195

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The active function panel is incorrectly detected when multiple function panels are being edited in the Function Panel Editor window.
If you create multiple function panels in the Function Panel Editor and attempt to add a control to a panel other than the original, the control is not always added to the selected function panel.

Workaround: Select the original function panel then the function panel that you want to create a control on before adding a control.

Reported Version: 8.0    Resolved Version: 2012    Added: 02/10/2012
334683

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The window number is displayed in the title bar of maximized windows when switching between tabbed and non-tabbed workspace.
N/A

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 02/14/2012
332690

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The Source Window background is not painted gray when a non-tabbed workspace is opened.
If the Show tabbed Workspace option is disabled and you open LabWindows/CVI, the background of the Source Window is painted partially white. Moving windows across the white region causes them to be painted gray.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 02/15/2012
333571

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Moving selected text in the Source window and then undoing offsets the original cursor position.
Selecting text and dragging it in a Source window moves the text to the new location. However, when this operation is undone, the input cursor is not restored to the correct location even though the text is still highlighted.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 02/15/2012
333983

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Non project C files loaded by function panels are not unloaded when switching projects.
When loading a project or switching the active project in a workspace, the function panels that were explicitly loaded by the previous project (not the dependency Function Panels) are unloaded, but the corresponding non project C files remain linked.

Workaround: Restart LabWindows/CVI.

Reported Version: 6.0    Resolved Version: 2012    Added: 02/15/2012
334920

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Corners of Source Editor windows are painted black in non-tabbed Workspace when opened.
When opening a workspace that has the Show Tabbed Workspace option disabled and at least one source code window open, the top corners of the Source Editor windows are painted black.

Workaround: N/A

Reported Version: 9.0    Resolved Version: N/A    Added: 02/15/2012
335301

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Disabling tabbed workspace doesn't restore windows to their original unmaximized state.
N/A

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 02/15/2012
335499

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Unmaximizing windows after loading a workspace leaves inactive windows without a number in front of the title in the title bar.
N/A

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 02/15/2012
361327

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The CNVGetScalarDataValue function expects a char* only and not a char[ ] as described in the function help.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2012 SP1    Added: 07/18/2012
361958

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The Project Tree does not auto-hide when a UIR file is opened.
Other file types do auto-hide the Project Tree. This behavior occurs only if you enable the Auto hide Project Tree and Library Tree option in the Environment dialog box.

Workaround: N/A

Reported Version: 9.0    Resolved Version: N/A    Added: 07/18/2012
354449

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Very long strings in the Edit Distributions dialog box may crash LabWindows/CVI.
Many of the text fields in the Edit Distributions dialog boxes do not have string length limits. Strings that are too long for the field may cause the ADE to crash.

Workaround: Limit the Application Name to 50 characters, the registry keys relative paths to 255 characters, and registry values to 2048 characters.

Reported Version: 8.5    Resolved Version: 2013    Added: 07/20/2012
347511

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Microsoft Visual Studio does not rebuild a LabWindows/CVI project if a UIR file changes but its header file does not.

Workaround: N/A

Reported Version: 8.0    Resolved Version: N/A    Added: 07/22/2012
347986

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The Load UI resource file dialog box in the User Interface Localizer utility unloads the currently loaded localization.
If changes have been made in the loaded file, a dialog box prompts you to save.

Workaround: N/A

Reported Version: 8.0    Resolved Version: N/A    Added: 07/22/2012
352408

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Pressing F1 on a function in the ActiveX Library or most of the Tools Libraries does not open the LabWindows/CVI Help to the topic for the specified function.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2013    Added: 07/22/2012
354450

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Using a very long string when setting the value of a variable in the Variables window may crash the LabWindows/CVI environment.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2013    Added: 07/22/2012
354451

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A very long string value in the Add/Edit Tools Menu Item dialog box may crash LabWindows/CVI.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2013    Added: 07/22/2012
354452

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A very long string value in the Project folder or File Folder option of the New Project from Template or New File from Template dialog boxes may crash LabWindows/CVI.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2013    Added: 07/22/2012
337770

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Setting LabWindows/CVI to "Run as administrator" will open a new instance of LabWindows/CVI each time you open a file associated with LabWindows/CVI.

Workaround: If you want to use LabWindows/CVI as administrator you can check the "Run as administrator" option from the Advanced button of the Shortcut tab instead of the Compatibility tab. You can access these options by right-clicking the LabWindows/CVI icon on your desktop and selecting Properties.

Reported Version: 8.5    Resolved Version: N/A    Added: 07/24/2012
333302

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Auto Backup will provide an error if the file is marked as read-only.
This behavior is common if the file is stored in source control. Auto Backup may also take effect even if the file was not modified.

Workaround: Disable Auto Backup in Environment Options.

Reported Version: 8.0    Resolved Version: N/A    Added: 07/25/2012
344947

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The LabWindows/CVI development environment crashes when you cut, copy, or delete a function panel tree item if it is the active item, but not selected.
The active tree item has a dotted border around it but is not highlighted in blue.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/25/2012
352775

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Sorting an empty column in the Modules window causes an error.
The LabWindows/CVI environment will throw the "The index passed is out of range" error when a column is selected that has no items in it. This can happen when you are not debugging because the modules list is empty.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 07/25/2012
315800

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The Find in files search will display a warning if a line it attempts to search is greater than 1024 characters.
Lines greater than 1024 characters are truncated at 1024 characters and the rest of the line is not searched. The warning does not provide any information on which file is causing the problem.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 07/26/2012
333273

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Using column selection mode in the Source window over a collapsed region of code will cause the region to be improperly selected.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 07/26/2012
333324

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Function panel controls in a disabled function may not be dimmed when the function panel is reopened for editing.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/26/2012
336446

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Entering more than 255 characters into the Line Label or Bus Label fields of the Edit Digital Graph dialog box will cause the LabWindows/CVI environment to crash.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/26/2012
336721

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Switching the active application while a control is being moved by the mouse causes the selection outline to not be undrawn.
This behavior occurs if you press <Alt-Tab> while dragging a control.

Workaround: Minimize and then maximize the LabWindows/CVI environment to remove the drawing errors.

Reported Version: 8.0    Resolved Version: 2012    Added: 07/26/2012
338093

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Not moving the mouse when using Zoom to rectangle mode triggers EVENT_ZOOM with ZOOM_RESTORE for the eventdata1 parameter of the callback.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 07/26/2012
341151

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Workspace folders with very long names can cause the LabWindows/CVI environment to crash when loading or saving.

Workaround: Avoid workspace folder names with over 100 characters.

Reported Version: 8.0    Resolved Version: 2012    Added: 07/26/2012
373262

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The Ini_WriteToRegistry and Ini_ReadFromRegistry function panels incorrectly list OS compatibility as Windows 9x/NT/2000.
Both functions are available in Windows XP and later.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2012 SP1    Added: 10/04/2012
386081

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Items in the Resource Tracking window can be expanded only if they contain at least two items.
The Expand Resource and Collapse Resource items of the Resource Tracking window context menu are dimmed unless the resource category has at least two items in it.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2013    Added: 02/19/2013
369682

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Once the value of the File name field of the New File from Template dialog box is changed, the File path field does not change extension if the file type is changed.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2013    Added: 02/21/2013
370519

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The LabWindows/CVI environment crashes when setting a string in the Array Display window to hexadecimal format while debugging a LabWindows/CVI application.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012 SP1    Added: 02/21/2013
371022

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The LabWindows/CVI environment crashes when entering a path instead of an IP address in the New Remote Debugging Target dialog box.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012 SP1    Added: 02/21/2013
388073

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The Show Prototype tooltip displays the help button for macros when the previous Show Prototype tooltip was for a function with help documentation.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 02/21/2013
368470

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The wrong text is selected after dragging multiple lines of text in the Source window into the middle of another line of text.
When multiple lines of text are dragged into another line of text, the text selection will extend to include characters that were not previously selected.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 08/05/2013
386160

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Cannot load attribute info for a .fp file when the associated .sub file is encoded as Unicode.

Workaround:
  1. Open the .sub file in text editor that allows for conversion of encodings.
  2. Convert the encoding to ANSI.


Reported Version: 6.0    Resolved Version: 2013    Added: 08/05/2013
387331

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Clearing a window in the Output Region causes the item to be dimmed in the Window menu.
If a window is cleared using the Clear Window option in the context menu, the item is dimmed in the Window menu and cannot be re-opened if closed.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2013    Added: 08/05/2013
391055

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Auto indent does not place the cursor in the correct location when pressing the Enter key after a break in a switch statement.
Inside a switch statement, when you press the Enter key following a break; statement, you most likely want to start a new case statement, which should be indented one level less than the break statement. However, LabWindows/CVI auto indent starts the new line at the same level as the break statement.

Workaround: N/A

Reported Version: 7.1    Resolved Version: 2013    Added: 08/05/2013
392932

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Documentation generated for variadic functions does not display variable parameter in function prototype.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 08/05/2013
399264

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The Find command may miss some search matches if the Whole word option is enabled.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2013    Added: 08/05/2013
403645

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LabWindows/CVI might crash when declaring a variable for the Attribute Value parameter of some attribute accessor functions.
For example if you use the Declare Variable option to declare a variable for the last parameter of the Ivi_GetAttributeViBoolean function, LabWindows/CVI will crash. This issue occurs only for functions where there is a parameter in between the attributeID and the attributeValue parameters.

Workaround: N/A

Reported Version: 7.1    Resolved Version: 2013    Added: 08/05/2013
407329

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Selecting Rebuild from the Batch Build dialog box causes a memory leak.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2013    Added: 08/05/2013
408295

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Source files with several while loops may cause LabWindows/CVI to hang while scrolling the source file.

Workaround: N/A

Reported Version: 8.5.1    Resolved Version: 2013    Added: 08/05/2013
408324

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LabWindows/CVI will crash when you click the selection button for a ring control while editing a function panel.
The selection button should not be displayed while the function panel is in edit mode. In some cases, the button will appear in edit mode, and LabWindows/CVI will crash if it is clicked.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 08/05/2013
Hardware
142035

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Some LabWindows/CVI GPIB functions return positive values if the GPIB driver is not installed.
The functions this bug affects are ibdev, OpenDev, CloseDev, and CloseInstrDevs. If the GPIB driver is not installed, these functions should return negative values according to the documentation, but instead they return 0x8000 (the ibsta value indicating that an error occurred).

Workaround: You can workaround this by checking if the return value is 0x8000 (ERR), and if so, check the value of iberr. You can also ignore the return value and check if ibsta has the ERR bit set after the function returns.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
ID Known Issue
171624

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CPU usage can spike when using ComRdTerm.

Workaround: Set the timeout to zero using SetComTime and poll until the termination byte occurs.

Reported Version: 6.0    Resolved Version: 2010    Added: 05/05/2010
201013

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OpenComConfig does not return an error if the configuration parameters are invalid.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2009 SP1    Added: 05/05/2010
201130

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Calling OpenComConfig with an input queue size greater than 40960 bytes results in unexpected behavior on Windows.
An input queue size greater than 40960 bytes causes an error in the Windows serial driver, leading to the port being opened with default settings. LabWindows/CVI does not return an error when this happens.

Workaround: Do not use an input queue size that is greater than 40960 bytes

Reported Version: 5.5    Resolved Version: 2009 SP1    Added: 05/05/2010
Installer
128084

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Uninstalling LabWindows/CVI from Windows Vista does not completely remove context menu file associations.

Workaround: N/A

Reported Version: 9.0    Resolved Version: N/A    Added: 05/05/2010
149929

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Uninstalling LabWindows/CVI 9.0 may cause some non-NI software to quit working.
For more information, refer to KB 4V57TIXU.

Workaround: KB 4V57TIXU.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
177971

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Creating an installer spec file fails if a Microsoft Visual Studio 2008 wizard is explicitly included
Creating new spec file by passing the /generateSpecFile flag to setup.exe will not allow you to finish if you explicitly select Microsoft Visual Studio 2008 integration.

Workaround: Manually modify the spec file located in the support files directory of the installation media.

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
334574

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Installing multiple versions of LabWindows/CVI on the same system can cause the wrong versions of the LabWindows/CVI Help to be associated with the development environment.
N/A

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 02/15/2012
Performance
129094

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Asynchronous timer limited to intervals no greater than approximately 429 seconds.

Workaround: Split intervals of greater than 429 seconds into smaller intervals.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
129812

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Calling a LabVIEW-built DLL causes the printf family of functions to format a double to a string incorrectly.
A string that should appear as 36010.000MHZ may instead appear as 3600:.000MHZ.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
139658

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GetFileSize can crash if you pass a path that is too long.

Workaround: Make sure the file path size is less than 260 bytes before calling this function.

Reported Version: 7.1.1    Resolved Version: 2009    Added: 05/05/2010
144368

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strtod and scanf can crash in multithreaded applications.

Workaround: Use locks from the Utility Library around every call to strtod or to the scanf family of functions.

Reported Version: 8.1    Resolved Version: 9.0.1    Added: 05/05/2010
144640

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LabWindows/CVI MAX_PATHNAME_LEN is more restrictive than Windows ANSI path limitation in multibyte systems.

Workaround: N/A

Reported Version: 7.1.1    Resolved Version: N/A    Added: 05/05/2010
144806

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CmtWaitForThreadPoolFunctionCompletion can hang in some rare circumstances.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
155155

Return
If you enable the Compile with precompiled include file option, LabWindows/CVI may occasionally crash when you view data tooltips during debugging.

Workaround: Disable precompiled headers.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
157141

Return
A memory leak occurs in the thread-safe queue.

Workaround: The leak does not occur under release builds.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
162398

Return
Toolbox lists can grow by amounts greater than the allocation policy specifies.
N/A

Workaround: Change the definition of NUMITEMSPERALLOC in toolbox.c from
#define NUMITEMSPERALLOC(list) Max(((*list)->listSize * ((*list)->percentIncrease + 100)) / 100 , (*list)->minNumItemsIncrease)
to
#define NUMITEMSPERALLOC(list) Max(((*list)->listSize * ((*list)->percentIncrease + 100)) / 100 - (*list)->listSize, (*list)->minNumItemsIncrease)

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
167239

Return
LabWindows/CVI can hang while editing a large non-source code data file.

Workaround: Waiting long enough will often resolve the hang.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
175150

Return
LabWindows/CVI can crash when opening a .c file containing lines with exactly 1020 characters.

Workaround: Do not create source files with lines exactly 1020 characters long.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
182036

Return
CreateUDPChannelConfig fails if ws2_32.dll is installed to the application directory.

Workaround: Remove ws2_32.dll from the application directory after making sure it resides in one of the other system paths.

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
184428

Return
LabWindows/CVI applications can crash when calling the Delay function from multiple threads.

Workaround: Use the Sleep function from the Interface to the Win32 API.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
191778

Return
Passing NULL to the Data_Buffer or Data_Length parameters of RegEnumerateValue results in a General Protection Fault.

Workaround: N/A

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
191841

Return
Matrix operations that use the Intel MKL on Windows have slight numerical differences between LabWindows/CVI 2009 and previous versions of LabWindows/CVI.
LabWindows/CVI 2009 uses the latest version of the Intel Math Kernel Library (MKL) to accelerate linear algebra operations under the Windows operating system. Some functions in the Intel MKL return minor differences in the result than previous versions of MKL due to higher optimization, causing slight numerical differences between results in functions in LabWindows/CVI 2009 and previous versions of LabWindows/CVI. This issue affects Vector and Matrix Algebra, Statistics, and Curve Fitting functions in LabWindows/CVI.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
196430

Return
Large static arrays declared in a block scope can cause a stack overflow if Detect uninitialized local variables at run time is selected.

Workaround: Disable the Detect uninitialized local variables at run time option in the Build Options dialog box.

Reported Version: 8.5    Resolved Version: 2009 SP1    Added: 05/05/2010
197427

Return
NIReport_GetPrinters has a small memory leak.
Each time the function NIReport_GetPrinters is called, a small amount of memory is leaked. The size of the leak depends on the number of installed printers and the length of the printer names.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 05/05/2010
201259

Return
Calling RegisterWinMsgCallback and UnRegisterWinMsgCallback from multiple threads may result in a crash.

Workaround: Synchronize via locks or critical sections calls to both RegisterWinMsgCallback and UnregisterWinMsgCallback.

Reported Version: 8.5    Resolved Version: 2009 SP1    Added: 05/05/2010
215744

Return
Calling CNVData functions in network variable callbacks can cause hangs.
Calling any of the CNVData functions in network variable callbacks may result in a hang if multiple threads are writing through a single shared CNVWriter object.

Workaround: Call the function PostDeferredCallToThread immediately upon entering a network variable callback. Construct a data structure to pass all the necessary elements to the callback routine to be executed on the main thread.

Reported Version: 9.0    Resolved Version: 2010    Added: 05/05/2010
41414
4DDCC0IO

Return
A small memory leak exists in network variable creation.
Explicitly creating network variables results in a memory leak of approximately 50 bytes per variable that is created.

Workaround: Consider using implicitly created network variables if you are creating and deleting numerous network variables over a long period of time.

Reported Version: 8.5    Resolved Version: N/A    Added: 05/05/2010
218499

Return
Calling GetTCPPeerName with an invalid handle can cause the application to hang.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2009 SP1    Added: 09/17/2010
233510

Return
Ini_GetInt64 doesn't return –5021 (Invalid integer) for numbers greater than LLONG_MAX.
Instead of returning an error, the function succeeds and returns LLONG_MAX.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2010    Added: 09/17/2010
256901

Return
Passing a pointer to a custom data type to a function that takes a void * will leak memory in a debug build.
LabWindows/CVI user protection leaks memory when a pointer to a user defined data type is passed to a function with a void * parameter. An example of this would be calling the function ListInsertItem and passing a pointer to a user defined data type to the PointerToItem parameter.

Workaround: Disable user protection, or build the program in a Release configuration.

Reported Version: 9.0    Resolved Version: N/A    Added: 11/15/2010
258354

Return
CNVProcessIsRunning may incorrectly report that the process is running if the program is run as a startup program.
CNVProcessIsRunning checks only if the process is configured to run when the Variable Engine is started. In most cases, this check is a good indicator of whether the process is running because the Variable Engine--a Windows service that automatically starts when Windows starts--loads all the processes configured to run.

Workaround: Try to browse to the process using the functions in the Browser Functions class of the Network Variable Library. If you are able to browse to the process using CNVBrowse, the process is running. The following code is an example of browsing to a process: 
CNVBrowser browser;
CNVCreateBrowser(&browser);
CNVBrowse("\\\\localhost\\your-process-name");
CNVDisposeBrowser(browser);


Reported Version: 9.0    Resolved Version: 2010 SP1    Added: 11/17/2010
253304

Return
TDMS Files with very high channel counts might be slow to open.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2010 SP1    Added: 11/19/2010
246218

Return
The numElements parameter of the DefineThreadSafeArrayVar macro is not expression-tolerant.

Workaround: Wrap your expression in parentheses when calling DefineThreadSafeArrayVar.

Reported Version: 8.0    Resolved Version: 2010    Added: 11/22/2010
285443

Return
The run-time movable custom control (movectrl.fp) leaks memory.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 03/09/2011
290737

Return
InetSendMail can crash if the "To:" field exceeds 250 bytes.

Workaround: If the "To:" field is longer than 250 bytes because you need to email multiple people, call the InetSendMail function multiple times so that the "To:" field doesn't exceed 250 bytes.

Reported Version: 7.1    Resolved Version: 2010 SP1    Added: 03/24/2011
298456

Return
A program that has called EnableDragAndDrop might crash if closed from the Windows taskbar.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 07/28/2011
292992

Return
Users cannot completely disallow creating directories in FileSelectPopup and DirSelectPopup.
If you pass 0 as the AllowMakeDirectory parameter of FileSelectPopup or DirSelectPopup, the icon for creating a folder is not present in the dialog box. However, users can still right-click the file list and select New»Folder.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 08/01/2011
314876

Return
The LabWindows/CVI Run-Time Engine can hang when calling CloseCVIRTE in a secondary thread.
The CloseCVIRTE function can cause a hang if called from a thread other than the main thread.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 02/08/2012
335299

Return
Multiple calls to ClipboardPutBitmap in a multithreaded application causes temporary hang.
Calling the ClipboardPutBitmap function from a thread other than the main thread can cause a temporary hang.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 02/14/2012
356348

Return
Using the TCP Library from multiple threads may cause a deadlock when combined with locks in the user's TCP callbacks.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2013    Added: 07/20/2012
339884

Return
When allocating memory with malloc, LabWindows/CVI will truncate the memory allocated to be an integer multiple of the size of the pointer data type.
You cannot allocate a large memory block and then manually split it into smaller blocks. If you do, you may receive run-time errors.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2013    Added: 07/22/2012
355436

Return
The InetTelnetOpen function limits connections to 100.
If you exceed this limit, a non-fatal run-time error occurs.

Workaround: N/A

Reported Version: 7.1.1    Resolved Version: 2012    Added: 07/25/2012
343157

Return
Calling the GetFileAttrs function with an improperly formed path and a non-existent drive may cause a crash.
Calling GetFileAttrs function with z:\test.txt as input for the first parameter will cause a crash. This is because there should be two slashes in the path string and because the z drive does not exist.

Workaround: Using two slashes will prevent the application from crashing.

Reported Version: 8.5    Resolved Version: 2012    Added: 08/13/2012
390072

Return
A memory leak occurs in the FileBrowser_GetSelectedFiles function when no files are selected or an error occurs

Workaround: The source code for this library is installed with LabWindows/CVI and can be edited by a user.
  1. Right-click the File Browser instrument driver in the Library Tree and select Edit Instrument.
  2. Click Attach and Edit Source in the Edit Instrument dialog box. This option opens FileBrowser.c in the Source window.
  3. Locate the FileBrowser_GetSelectedFiles function in the source file.
  4. In the case statement for numSelected < 1, replace the return statement with goto Error;.
  5. Move the Error: label before ListDispose(list).
  6. Build FileBrowser.c.


Reported Version: 7.0    Resolved Version: 2013    Added: 08/05/2013
397059

Return
The GetMonitor functions fail if the monitor configuration changes.
When the monitor configuration of the system changes (e.g. unplugging a monitor from a system with multiple monitors), GetMonitorFromPoint, GetMonitorFromRect, and GetMonitorFromPanel always return a value of 1 for the monitor ID.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2013    Added: 08/05/2013
Stand-Alone Applications and Distributions
130423

Return
The .NET Library cannot be included in a distribution without also including the full run-time engine.
You also cannot install the .NET Library if you are privately installing the LabWindows/CVI Run-Time Engine.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
131196

Return
The Import Measurement & Automation Explorer (MAX) Configuration File checkbox is always checked on the Advanced tab of the Edit Installer dialog box.
This happens when reloading the distribution settings from a .cds file. As long as the config file path is empty, the build behavior is not actually affected.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
137318

Return
Adding dependencies of an executable to the Installation Files & Directories section in the Edit Installer dialog box displays two copies of the DLL.

Workaround: Re-open the Edit Installer dialog box.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
141434

Return
LabWindows/CVI crashes when unloading a workspace with an ActiveX server project after building a distribution.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
154605

Return
Projects with a relative path for the application file can crash when configuring a distribution.

Workaround: Ensure that the Target Settings dialog box specifies a full, absolute path for the project output file rather than just a filename. Specifically check the Release configuration.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
182036

Return
CreateUDPChannelConfig fails if ws2_32.dll is installed to the application directory.

Workaround: Remove ws2_32.dll from the application directory after making sure it resides in one of the other system paths.

Reported Version: 9.0.1    Resolved Version: 2009    Added: 05/05/2010
186565

Return
LabWindows/CVI distributions cannot install fonts on Windows Vista or Windows 7.

Workaround: N/A

Reported Version: 8.5    Resolved Version: N/A    Added: 05/05/2010
292521

Return
An application whose installer includes only the "Network Variable Support" sub-item might run slower than expected on a minimally configured target computer.
Under this scenario, the components necessary for LogosXT are not installed.

Workaround: Distribute the entire LabWindows/CVI Run-Time Engine.

Reported Version: 8.5    Resolved Version: 2010 SP1    Added: 08/01/2011
292805

Return
An application whose installer includes only the "Network Variable Support" sub-item might not run correctly on a minimally configured target computer.

Workaround: Distribute the entire LabWindows/CVI Run-Time Engine.

Reported Version: 8.5.1    Resolved Version: 2010 SP1    Added: 08/01/2011
312179

Return
Some Microsoft DLLs are automatically included in distributions built with LabWindows/CVI.
Some Microsoft dependencies are operating system dependent and should not be included in distributions. These dependencies typically already exist on most targets. If not, then they should be installed from a Microsoft distribution.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 02/06/2012
316361

Return
The LabWindows/CVI low-level support driver CVINTDRV.sys contains a security vulnerability.
Refer to Does National Instruments Security Update 5Q5FJ4QW Affect Me? for more details.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 02/08/2012
354481

Return
User specified icons are not displayed in Windows Explorer for larger sizes in Windows Vista/7.
In certain situations, the icon displayed may be a cached icon rather than the icon you have specified.

Workaround: Follow the instructions in KnowledgeBase 5A6C270U: Cannot Update Custom Icon of an Executable in Windows 7 or Vista to remove the cached icon.

Reported Version: 8.5    Resolved Version: N/A    Added: 07/22/2012
369355

Return
Applications that use the DIAdem Connectivity Library that are installed using a distribution built in LabWindows/CVI might generate run-time errors related to the Microsoft Visual C++ 2005 run-time not being installed.
This issue occurs with distributions that include the DIAdem Connectivity Library support by selecting the NI USI component in the Edit Installers dialog box, but do not include the full LabWindows/CVI Run-Time Engine.

Workaround: Either include the full LabWindows/CVI Run-Time Engine in the distribution, or download and install the Microsoft Visual C++ 2005 Redistributable package from the Microsoft website.

Reported Version: 7.1    Resolved Version: 2012 SP1    Added: 02/21/2013
369915

Return
Creating a distribution for a project that uses the DataSocket Library does not automatically check the NI DataSocket 5.0 option in the Drivers & Components tab of the Edit Installer dialog box.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2013    Added: 02/21/2013
384581

Return
The GetExternalModuleAddrEx function fails to load a DLL if it is not in the current working directory or the system path.
If you load a import library that is located in a different path using the LoadExternalModuleEx function, the GetExternalModuleAddrEx function will not be able to locate the DLL if it is in the same path as the import library.

Workaround: Make sure the DLL is in a directory where the system can locate it (e.g., the current working directory or the system path).

Reported Version: 8.5    Resolved Version: 2013    Added: 08/05/2013
396825

Return
The default value for the Publisher option on General tab of the Edit Installers dialog box is "%company".
This value is not evaluated and the publisher appears as "%company".

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2013    Added: 08/05/2013
User Interface
101593

Return
Strip chart scroll bar overlaps the plot area.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
126708

Return
PlotArc lacks accuracy for drawing a small angle with a large radius.

Workaround: N/A

Reported Version: 8.5.1    Resolved Version: N/A    Added: 05/05/2010
129832

Return
Editing multiple controls changes tab order and z-plane order.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 9.0.1    Added: 05/05/2010
131102

Return
On Windows Vista, file selection dialog boxes add an extra backslash (\) character when selecting a file at the root of a volume.

Workaround: N/A

Reported Version: 8.5.1    Resolved Version: 9.0.1    Added: 05/05/2010
131413

Return
After widening the inc/dec arrows, the entire area of the arrows is not clickable.
This bug will only manifest itself if the left edge of the control label does not extend all the way to the left edge of the inc/dec arrows.

Workaround: If a label is not needed for the control, the user can add a label and then move it off screen programmatically using the ATTR_LABEL_LEFT and ATTR_LABEL_TOP attributes. The idea is to move it up and left far enough that it always is off screen, thereby ensuring the label always extends past the left edge of the inc/dec arrows.

Reported Version: 8.5    Resolved Version: 9.0.1    Added: 05/05/2010
134165

Return
Menu bar does not resize when using the Scale Contents On Resize or Resolution Adjustment options.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
135032

Return
Checkerboard dimming of controls is leaving label text etched.
The system attribute ATTR_USE_CHECKERBOARD_DIMMING was introduced to restore the LabWindows/CVI 7.1 control dimming behavior. However, because the label text remained etched, it did not fully restore the LabWindows/CVI 7.1 control dimming behavior.

Workaround: N/A

Reported Version: 8.5.1    Resolved Version: 9.0.1    Added: 05/05/2010
135264

Return
The Done button can disappear when you resize a file selection dialog box.

Workaround: Size the file selection dialog until the Done button shows.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
136678

Return
Menu events cause a crash if there is no menu callback specified and the application has a main callback.

Workaround: Create and use an empty callback function for the popup menu items.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
138050

Return
The Remove All button in the multi-file selection dialog box is missing a corner.

Workaround: Resize the dialog box to display the missing corner.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
139151

Return
Debugger does not always catch incorrect use of ATTR_COPY_ORIGINAL_DATA.
If ATTR_COPY_ORIGINAL_DATA is set to 0 and the data buffer is deallocated before the graph control is done using it, a program may crash without any explanation from the debugger.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
139269

Return
Hidden tab pages of a nested tab control can be made active.
Controls with tooltips can cause hidden tab pages to display if the hidden tab page was the last active tab.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
140926

Return
Changing the axis range on a LabWindows/CVI graph plot with few points causes skewed plot lines.
Due to rounding errors, as points move further off screen, the plot lines become less accurate.

Workaround: Provide more points for your plot, or constrain the range of the graph in question.

Reported Version: 5.5    Resolved Version: N/A    Added: 05/05/2010
143075

Return
Table and tree controls do not scale proportionally to other controls.
The Scale Contents On Resize option does not work correctly with table and tree controls.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
145322

Return
Graph y-axis name not drawn correctly after graph changes position before being displayed.

Workaround: After resizing the panel, but before displaying it, add the following code:

SetCtrlAttribute (panelHandle, PANEL_GRAPH, ATTR_FIXED_PLOT_AREA, 1);
SetCtrlAttribute (panelHandle, PANEL_GRAPH, ATTR_FIXED_PLOT_AREA, 0);

This code should have no discernible effect other than making sure that the y-axis name is visible once you display the panel.

Reported Version: 9.0    Resolved Version: 9.0.1    Added: 05/05/2010
147737

Return
Numeric markers do not always adjust correctly to the resizing of a slide control.
If you readjust the size of a numeric slide while the markers or ticks are not visible, the markers or ticks will be drawn in the wrong location when you make them visible.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2010    Added: 05/05/2010
149350

Return
The cursor position of a text box control can be incorrect when typing Thai characters.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
151308

Return
Passing '.' or '..' to the DefaultFileSpec parameter of FileSelectPopup causes a legacy file dialog box to be shown.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010    Added: 05/05/2010
154911

Return
Setting ATTR_INCDEC_WIDTH on numeric controls has no effect if the inc/dec arrows are not visible.

Workaround: Show the inc/dec arrows, set the width, and then hide the arrows.

Reported Version: 9.0    Resolved Version: 2010    Added: 05/05/2010
173952

Return
Truncating tree item strings can cause user applications to crash under some circumstances.
This issue can occur when a string is truncated from three characters to the first character followed by .... For example, a problem could occur if the string 123 was truncated to 1....

Workaround: Ensure room for at least 4 characters in any tree string.

Reported Version: 8.5    Resolved Version: 2009    Added: 05/05/2010
175118

Return
Minor gridlines of graph controls and minor ticks of numeric slide controls can disappear.
Enabling the reverse axis option on the y-axis of a strip chart or graph can cause this to happen.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
177284

Return
Table and tree scroll bars are not always clipped to a child panel's bounds.

Workaround: N/A

Reported Version: 8.5.1    Resolved Version: 2009    Added: 05/05/2010
183301

Return
Splitter controls with no range limit do not draw shadow when operated.

Workaround: N/A

Reported Version: 7.1    Resolved Version: 2009    Added: 05/05/2010
189247

Return
Drag and drop operation on the title bar or window frame does not work.

Workaround: Change the line that reads
if (!S_DragQueryPoint ((HANDLE)(*pwParam), &mousePoint, &sdkRetVal) && sdkRetVal)
in the function DragAndDropCallback in toolbox.c to read
if (!S_DragQueryPoint ((HANDLE)(*pwParam), &mousePoint, &sdkRetVal))
instead.

Reported Version: 8.1    Resolved Version: 2009    Added: 05/05/2010
ID Known Issue
189400

Return
Loading a very wide .bmp or .pcx file can fail with an Out of Memory error.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
190831

Return
ATTR_NO_EDIT_TEXT allows tab spaces to be entered into a text box control.

Workaround: Swallow the appropriate key press events. Refer to this forum for example code.

Reported Version: 9.0    Resolved Version: 2009    Added: 05/05/2010
193088

Return
If a LabWindows/CVI popup panel is not active, subsequent popup panels may appear behind the original popup panel.
This issue only occurs on Windows 7/Vista.

Workaround: N/A

Reported Version: 6.0    Resolved Version: N/A    Added: 05/05/2010
193403

Return
The panel attribute ATTR_MOVABLE does not work with Aero enabled on Windows 7/Vista.

Workaround: N/A

Reported Version: 9.0    Resolved Version: N/A    Added: 05/05/2010
194174

Return
Bitmaps with alpha channels, such as .PNG images, do not print correctly.
The images on picture button controls become very small when they are printed.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 05/05/2010
194970

Return
Using string controls with right or center justification causes the cursor to appear in the wrong position when there are trailing spaces

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2010    Added: 05/05/2010
197797

Return
The strip chart cannot plot more than INT_MAX points.
The strip chart appears to hang after plotting INT_MAX points.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2009 SP1    Added: 05/05/2010
216830

Return
Loading a panel with an ActiveX control in a thread other than the main thread will fail.
The error NON-FATAL RUN-TIME ERROR: Library function error (return value == -143 [0xffffff71]). ActiveX control error may be thrown on calls to LoadPanel.

Workaround: Load the panel in the main thread.

Reported Version: 9.0    Resolved Version: 2009 SP1    Added: 05/05/2010
243203

Return
LabWindows/CVI file dialog boxes cannot open files accessed through the Libraries button on Windows 7.
Windows 7 introduced the Libraries button to the common file dialog boxes. LabWindows/CVI cannot open files that have been accessed by browsing through this button.

Workaround: Do not browse to files with the Libraries button.

Reported Version: 9.0.1    Resolved Version: 2012    Added: 05/05/2010
231945

Return
SetCtrlVal does not immediately redraw an LED to the new state.

Workaround: Add a call to ProcessDrawEvents after calls to SetCtrlVal.

Reported Version: 6.0    Resolved Version: 2010    Added: 08/25/2010
217094

Return
EVENT_MOUSE_POINTER_MOVE can nest until the stack overflows if ProcessSystemEvents is called from the event callback.

Workaround: Do not call ProcessSystemEvents globally for a callback function or when handling EVENT_MOUSE_POINTER_MOVE.

Reported Version: 9.0    Resolved Version: 2010    Added: 09/17/2010
225134

Return
Bitmaps obtained with the GetCtrlDisplayBitmap function cannot be used as menu images.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 09/17/2010
237405

Return
The event EVENT_LEFT_CLICK_UP can be sent to a panel behind a modal dialog box.

Workaround: Set a flag so that you do not handle EVENT_LEFT_CLICK_UP while a modal dialog box is present.

Reported Version: 8.1    Resolved Version: 2010    Added: 09/17/2010
238634

Return
ActiveX controls aren't dimmed when ATTR_DIMMED is set to True.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 09/17/2010
256995

Return
Deleting a tree item after hovering over it may generate a first chance exception.
When you hover over a tree item, the LabWindows/CVI Run-Time Engine creates a timer that waits for one second before displaying a tooltip for the tree item. If the tree item is deleted before one second elapses, a first chance exception will be thrown when the timer code tries to access the deleted tree item.

Workaround: Ignore the exception. It will be handled internally by the LabWindows/CVI Run-Time Engine

Reported Version: 8.5    Resolved Version: 2010    Added: 11/15/2010
255807

Return
When manually sizing a panel with a text box, the error message "The attribute passed is not valid" may be displayed.

Workaround: Set the ATTR_EXTRA_LINES attribute of the text box to -1 or to a very large value.

Reported Version: 7.0    Resolved Version: 2010    Added: 11/18/2010
255934

Return
Fonts may not scale correctly when using the panel option Scale Contents on Resize.
This problem is most evident when the scaling of the panel does not preserve the original aspect ratio.

Workaround: Enforce the original aspect ratio by handling the EVENT_PANEL_SIZING event and calling the functions GetPanelEventRect and SetPanelEventRect.

Reported Version: 8.5.1    Resolved Version: 2010    Added: 11/18/2010
256628

Return
In some cases, a ring control can display a menu that doesn't completely fit on the screen.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2010    Added: 11/18/2010
250654

Return
A strip chart that has been scrolled prints as if it were not scrolled.
When printing a strip chart with PrintPanel or PrintCtrl, the strip chart will be printed without scrolling.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2010    Added: 11/19/2010
252100

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The quality of images with transparency may deteriorate with repeated opening and closing of the associated UIR.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 11/19/2010
253696

Return
Printing images with transparent backgrounds does not work correctly.
The transparent part of an image will be rendered as white when calling PrintPanel or PrintCtrl on a control with an image that contains transparency.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010    Added: 11/19/2010
248368

Return
Hidden table rows and columns can still be clicked on, making them reappear temporarily.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2010    Added: 11/22/2010
286276

Return
The frame of the increment and decrement buttons on numeric controls may not draw entirely.
When using Windows visual styles, the top portion of the frame of the increment button or the bottom portion of the frame of the decrement button may not be drawn depending on the font that is used.

Workaround: Slightly alter the font size or font face you are using.

Reported Version: 8.1    Resolved Version: 2012    Added: 03/03/2011
284842

Return
The GetTableCellRangeVals and SetTableCellRangeVals functions do not work for string cell types in a 64-bit application.

Workaround: Set the value of each cell individually with SetTableCellVal.

Reported Version: 9.0    Resolved Version: 2010 SP1    Added: 03/04/2011
276442

Return
Displaying a file select popup panel from a panel with a tab control might disrupt the panel z-plane order.
If a panel has both a tab control and child panels, and the child panels overlap the tab control, the child panel can be overlapped by the tab control after displaying a file select popup panel or a directory select popup panel.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2010 SP1    Added: 03/09/2011
276443

Return
A tab inserted anywhere but the end of the list will use the wrong image.
A tab that is inserted into a tab control at any position but the end of the list will result in the new tab using the image from tab that is in the next position. For example, if a tab control has three tabs, inserting a tab into the second position will cause the new tab to use the same image as the now third tab.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2010 SP1    Added: 03/09/2011
276799

Return
Numeric table cells do not coerce values when values are pasted from the clipboard.
If a table cell or range of cells is not in edit mode when a value is pasted from the clipboard, the cell will not coerce the value to the specified minimum or maximum values.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2012    Added: 03/09/2011
281082

Return
A strip chart legend may not be drawn correctly if it overlaps the strip chart plot area.
If a strip chart legend overlaps the plot area for the strip chart it is associated with, the legend will not redraw correctly if its visibility is toggled.

Workaround: Place a transparent control on top of the strip chart's plot area.

Reported Version: 9.0    Resolved Version: 2010 SP1    Added: 03/09/2011
281083

Return
The y-axis name of a strip chart control might be drawn incorrectly when the y-axis autoscales.
When the data on a strip chart causes the y-axis to autoscale, the y-axis name may be drawn incorrectly.

Workaround: Do not enable autoscaling for the strip chart.

Reported Version: 9.0    Resolved Version: 2010 SP1    Added: 03/09/2011
288389

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The splitter control can disappear after is it dragged.
This issue occurs only on Windows 7 or Windows Vista with Aero enabled.

Workaround: Create a callback function for your splitter controls. In the EVENT_DROPPED case, hide the control, delay for a short amount of time, and then display the control. For example, adding the following code to the EVENT_DROPPED case of the splitter callback function should cause the splitter to display whenever it is dropped.

SetCtrlAttribute (panelHandle, PANEL_SPLITTER, ATTR_VISIBLE, 0);
Delay (.02);
SetCtrlAttribute (panelHandle, PANEL_SPLITTER, ATTR_VISIBLE, 1);


Reported Version: 7.1    Resolved Version: 2012    Added: 03/10/2011
302494

Return
Memory is leaked when calling GetScaledCtrlDisplayBitmap on graph control with ATTR_COPY_ORIGINAL_DATA set to 0.

Workaround: Complete the following steps:
  1. Scale the control manually using SetCtrlAttribute with ATTR_HEIGHT and ATTR_WIDTH.
  2. Call GetCtrlDisplayBitmap to obtain the bitmap.
  3. Return the control to its normal size.


Reported Version: 8.0    Resolved Version: 2010 SP1    Added: 07/27/2011
303637

Return
Scrolling strip charts can have inaccurate values for min and max due to rounding errors.
For example, if your strip chart displays 100 points and you plot 100 points at a time, the end values may end with a value other than 99.

Workaround: N/A

Reported Version: 6.0    Resolved Version: N/A    Added: 07/27/2011
303721

Return
Table row and column header separators do not line up with the row and column marker lines when Windows visual styles are enabled.
In Windows 7, the row lines do not match up. In Windows XP, the column lines do not match up.

Workaround: Disable Windows visual styles for controls.

Reported Version: 8.5    Resolved Version: 2012    Added: 07/27/2011
304541

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The Run-Time Movable Control (movectrl.fp) custom control does not display a hand when moving numeric controls.
Normally, when moving a control by using the movable control custom control, a hand is displayed as the mouse cursor. However, an I-beam cursor is displayed for numeric controls.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 07/27/2011
305258

Return
GetScaledCtrlDisplayBitmap can hang for some scaling ratios.
For instance, scaling a graph from 400x801 pixels to 200x200 pixels will cause a hang.

Workaround: Modify the scaling factor until the hang does not occur.

Reported Version: 8.5    Resolved Version: 2012    Added: 07/27/2011
306560

Return
VAL_SIZE_TO_PICTURE can significantly degrade the resolution of pictures if the pictures must shrink.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012    Added: 07/27/2011
298632

Return
Full ticks are not consistently drawn for many numeric controls.
When full ticks are enabled for numeric slides, knobs, gauges, dials, or meters, some full ticks will be drawn darker than others. This is because the full ticks are drawn multiple times at once, leading to darkening because of the alpha blending done by ClearType.

Workaround: Disable ClearType.

Reported Version: 5.5    Resolved Version: 2012    Added: 07/28/2011
299688

Return
Some items in the LabWindows/CVI status bar require a double-click to toggle, while others require a single-click.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 07/28/2011
293672

Return
Some user interface controls do not draw Windows styles on mouse-over.
For example, the following controls and control parts should display as a highlighted blue on Windows Vista and later, but do not:
  • The inc/dec arrows for all numeric controls.
  • The square push button and the square text button.
  • The list control scroll bar arrows and thumb.


Workaround: N/A

Reported Version: 8.5    Resolved Version: N/A    Added: 08/01/2011
293859

Return
The Floating Style attribute of a child panel can cause displayed panels to display as modal behind other displayed panels.

Workaround: Change the Floating Style panel attribute of all child panels to Never.

Reported Version: 9.0.1    Resolved Version: 2012    Added: 08/01/2011
294159

Return
<Ctrl-Left Arrow> and <Ctrl-Right Arrow> do not work correctly in text controls on multibyte versions of Windows.
The text cursor does not correctly move to work breaks.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 08/01/2011
292070

Return
Passing TRUE to the RestrictDirectory parameter of FileSelectPopup does not completely restrict the directory to the initial directory.
The user can select files from other directories by entering the path directly into the File Name control and by selecting a file from the previously selected files drop-down list.

Workaround: N/A

Reported Version: 6.0    Resolved Version: N/A    Added: 08/02/2011
37666
3TJ0IB7K

Return
Panels displayed with ATTR_WINDOW_ZOOM set to VAL_MAXIMIZE will not restore after showing the desktop.
You can show the desktop by pressing <Windows Key-D> or by selecting the Show Desktop button on the task bar.

Workaround: Call SetPanelAttribute with ATTR_WINDOW_ZOOM after calling DisplayPanel.

Reported Version: 8.0    Resolved Version: N/A    Added: 08/02/2011
328679

Return
Graph legend items are highlighted after calling RecallPanelState under some conditions.
This behavior can occur even if the ATTR_LEGEND_INTERACTIVE attribute is disabled.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 01/09/2012
329406

Return
LabWindows/CVI crashes when setting the Offset option for a graph if the Absolute Time Display Format is set to a very large number.
N/A

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 01/09/2012
329461

Return
Printing UIR files resizes the table control in the print output.
N/A

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 01/09/2012
326106

Return
If you save UIR files as older versions, LabWindows/CVI does not warn you that features that are unsupported in that version will not be saved.
When saving a UIR file as an older version, LabWindows/CVI does not warn you that some features that were not supported in that version will not be saved. These features cannot be saved because they did not exist in that version.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 01/10/2012
313512

Return
Ring control label/value pairs precision does not persist when changed.
When the precision of a double or float label/value pair is modified in the User Interface Editor, the precision attribute is restored to its original value when the Edit Label/Value Pairs dialog box is opened again.

Workaround: This behavior occurs only if there is only 1 label/value pair. Multiple label/value pairs persist the precision attribute. If you want only 1 label/value pair, add a second label/value pair and then change the precision attribute. Close the Edit Label/Value Pairs dialog box by clicking OK. Return to the Edit Label/Value Pairs dialog box and remove the second label/value pair. The precision attribute will now persist this value.

Reported Version: 8.5    Resolved Version: 2012    Added: 01/11/2012
314106

Return
The x-axis of the digital graph displays improper divisions.
Large digital graphs with engineering or scientific display format set for the x-axis may display divisions and division labels that are inconsistent with other display formats.

Workaround: N/A

Reported Version: 8.0    Resolved Version: N/A    Added: 01/11/2012
310781

Return
The table control displays a gap between the table cells and the bottom and right edges of the control when resized.
This is an effect of the control's 3D style and not a bug. Future versions will allow the frame to be made invisible with the ATTR_FRAME_VISIBLE attribute.

Workaround: Disable the Use Windows Visual Styles for Controls option for the panel.

Reported Version: 8.5    Resolved Version: 2012    Added: 02/06/2012
311281

Return
Graph controls display the x-axis name at an angle if you set the ATTR_XYNAME_FONT attribute to a metafont that rotates text.
The graph should not display fonts that specify an angle of rotation for text for the x-axis name.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 02/06/2012
312398

Return
Deleting all lines from a text box control with no lines available to delete causes a nonfatal runtime error.
Passing -1 for the Number of Lines parameter of the DeleteTextBoxLines function deletes all lines from the index to the end. However, if there are no lines after the index, a nonfatal runtime error will occur.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012    Added: 02/06/2012
313765

Return
The LabWindows/CVI Run-Time Engine may crash when unloading a DLL that contains a panel in a thread other than the main thread.
N/A

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2012    Added: 02/07/2012
314344

Return
Changing the panel title from a different thread can cause a hang.
Changing the panel title from a thread other than the thread that the panel was created in can cause a hang.

Workaround: N/A

Reported Version: 5.5    Resolved Version: 2012    Added: 02/07/2012
316365

Return
Panel toolbars are not fully discarded when created and discarded in a thread other than main.
Calling the Toolbar_Discard function in a thread other than the main thread will cause a Non-Fatal Run-Time Error to occur when exiting the main function.

Workaround: The error can be ignored because it only occurs when the application is exiting. Call SetBreakOnLibraryErrors (0) as the last statement in the main function to hide this error.

Reported Version: 8.0    Resolved Version: 2012    Added: 02/08/2012
318200

Return
The Edit Tabbing Order dialog box does not allow you to modify the tabbing order of controls that are behind overlapping controls.
N/A

Workaround: N/A

Reported Version: 5.0    Resolved Version: 2012    Added: 02/09/2012
319561

Return
SetCursorAttribute does not return an error when passed an annotation attribute.
The SetCursorAttribute function will attempt to set an attribute that does not exist and can produce undefined errors.

Workaround: Do not pass annotation attributes to SetCursorAttribute.

Reported Version: 8.0    Resolved Version: 2012    Added: 02/09/2012
322979

Return
Drawing a filled shape on the canvas with a pen width greater than 1 causes the filling to exceed the shape's border.
When the pen width for a canvas is greater than 1 and you specify VAL_DRAW_FRAME_AND_INTERIOR as the Draw Mode for the draw function, the filling will exceed the shape's border.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2013    Added: 02/09/2012
329376

Return
The graph legend does not always match the angle of text plots.
The angle of the text in the sample plot of the graph legend may or may not match the angle of the text plot. Different behavior is demonstrated for various angles, font sizes, and fonts. Some conditions may cause the sample plot to display an underlined font when the plot does not use an underlined font.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2012    Added: 02/09/2012
329411

Return
User interface control labels appear to resize when switching from Windows XP to Windows Vista or Windows 7.
The font size of the labels actually remains the same, but the rendering of the labels is handled differently in Windows XP than it is in Windows Vista and Windows 7. The larger label size causes the controls to resize.

Workaround: For the labels, disable the Size to text option in the Label Appearance section of the Edit Control dialog box.

Reported Version: 9.0.1    Resolved Version: 2012    Added: 02/10/2012
333163

Return
The Choose Date/Time Value dialog box displays an error message for an invalid date three times.
If you enter an invalid date, such as Febuary 31, in the Choose Date/Time Value dialog box, LabWindows/CVI closes the dialog box and its parent dialog boxes and displays an error message stating Value is invalid or out of range three times.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 02/14/2012
334681

Return
Setting the Label text in the Edit Tree dialog box to a string greater then 250 characters can crash LabWindows/CVI.
N/A

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 02/14/2012
329405

Return
Numeric control radix does not resize with control text size.
N/A

Workaround: N/A

Reported Version: 3.0    Resolved Version: N/A    Added: 03/23/2012
345272

Return
Tree control may crash when more than 200,000 items are inserted.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012    Added: 07/17/2012
363056

Return
Floating point format in UI controls allows too many digits before automatically switching to scientific format.
The floating point representation may show more digits than are represented by the underlying data.

Workaround: Use scientific format if you may need to display very large numbers.

Reported Version: 6.0    Resolved Version: 2013    Added: 07/18/2012
337950

Return
Graph zoom selection box leaves artifacts if a control is moved over the drawing region in between frames.
If a control is moved over the graph's drawing region while creating a zoom selection box, the control may interfere with the drawing of the selection box and leave traces of where the selection box once was.

Workaround: N/A

Reported Version: 8.5    Resolved Version: N/A    Added: 07/22/2012
345703

Return
Some controls do not print colors correctly in bitmap printing when set to black & white mode.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2013    Added: 07/22/2012
347056

Return
Dragging the ring tank control value to change its fluid height at run-time may cause black lines to appear where the previous fluid height was.

Workaround: N/A

Reported Version: 9.0    Resolved Version: N/A    Added: 07/22/2012
347323

Return
Changing digital graph line label and bus label programmatically does not update the control labels if the plot does not contain any data.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2013    Added: 07/22/2012
349832

Return
The mouse wheel scrolls the wrong control while ring control menu is displayed.
This behavior occurs if the focus is still on a different control when the ring drop-down menu is opened.

Workaround: N/A

Reported Version: 8.1    Resolved Version: N/A    Added: 07/22/2012
350412

Return
In some cases, the EVENT_LOST_FOCUS and EVENT_COMMIT events are not displayed in Operate mode when changing focus away from controls.

Workaround: N/A

Reported Version: 8.5    Resolved Version: N/A    Added: 07/22/2012
350752

Return
A tree item tooltip continues to display when the cursor is over a tree item and another active window is in front of part of the tree item.

Workaround: N/A

Reported Version: 8.5    Resolved Version: N/A    Added: 07/22/2012
350944

Return
The numeric control cannot have a transparent background.

Workaround: N/A

Reported Version: 6.0    Resolved Version: N/A    Added: 07/22/2012
345074

Return
Passing an incorrect panel attribute to the GetPanelAttribute function causes a general protection fault.
For example, passing ATTR_LABEL_TEXT to the GetPanelAttribute function will cause a crash because it is not a valid attribute of a panel.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 07/25/2012
346432

Return
Child panels in a tab control do not resize when the tab is resized and Scale Contents on Resize is enabled.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/25/2012
347326

Return
The digital graph control does not limit the Line Label and Bus Label values string size to 255 characters.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/25/2012
348756

Return
The CVI GUI Localization Utility will not advance to the Right Y Axis of strip charts if the Next button is clicked.

Workaround: Select the Right Y Axis item with the mouse.

Reported Version: 8.5.1    Resolved Version: 2012    Added: 07/25/2012
349930

Return
Mouse tracking is not aborted during a mouse click event if the control callback causes the panel to lose focus.
For example, a string control handles the EVENT_LEFT_DOUBLE_CLICK event and during the callback the panel loses focus by displaying a popup dialog. When the popup dialog is closed, the mouse will continue to highlight the string control text.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/25/2012
350416

Return
ExcelRpt_WriteDataFromTableControl function does not support combo box, ring, or button cell types.
Picture cell types are also not supported, but Microsoft Excel does not have an equivalent cell type to accept the conversion.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012    Added: 07/25/2012
290770

Return
Popup dialogs appear in the same location where they were located the last time the dialog appeared in that process.
The file dialog will appear centered in the monitor of the active panel the first time a process with this name is executed. From this point on, it will remember where you have moved it and it will always appear in that same location.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/26/2012
309845

Return
Tree control tooltip does not use the character set of the tree.
Hovering over an item with the mouse shows a tooltip with the item label if the label is longer than the visible area of tree control. That tooltip uses the native character set instead of the character set specified for the tree control.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2013    Added: 07/26/2012
336312

Return
Calling the GetCtrlVal function for the picture ring control may cause an "Assertion failed" error in the Event Viewer if the picture ring data type is set to " string (char *)".

Workaround: Use "int" as the data type for the picture ring control then use an enum or switch statement to reference the desired string.

Reported Version: 6.0    Resolved Version: 2012    Added: 07/26/2012
337804

Return
Changing the label of a tree item from the Label control or the Quick Edit Window does not update the corresponding entry in the Default Index option for that tree item.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012    Added: 07/26/2012
341569

Return
The index counts in the Default index option can have the wrong value if items are inserted in the tree out of order.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012    Added: 07/26/2012
343989

Return
Some Programmer's Toolbox functions do not support Lab Style controls.
The SizeRingCtrlToText, ConformCtrlBitmapToPanel, and RecessAllCtrlFrames functions do not support Lab Style controls.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2012    Added: 07/26/2012
352509

Return
ATTR_XLOOSE_FIT_AUTOSCALING_UNIT attribute does not work well with log scales.
This attribute allows you to specify the base 10 logarithm of the loose fit factor. By the nature of a log scale, the same factor cannot be used for both the minimum and maximum value of the scale.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2013    Added: 08/15/2012
373393

Return
Classic-style decoration controls that have rounded edges appear speckled.
Some of the pixels of the edges display as transparent instead of the specified color.

Workaround: N/A

Reported Version: 6.0    Resolved Version: 2013    Added: 02/20/2013
379530

Return
Opening a UIR file containing a tab control attached to a splitter control that is saved in LabWindows/CVI 7.1 causes an "Invalid control ID" error.
The example project events.prj contains events.uir, which will cause this error if saved in LabWindows/CVI 7.1.

Workaround: N/A

Reported Version: 8.0    Resolved Version: 2012 SP1    Added: 02/21/2013
379767

Return
UIR files saved in LabWindows/CVI 8.1 and earlier that contain a knob, dial, gauge, or meter can corrupt the environment memory when opened in LabWindows/CVI 8.5 or later.
The memory corruption may cause the LabWindows/CVI environment to crash.

Workaround: N/A

Reported Version: 8.5    Resolved Version: 2012 SP1    Added: 02/21/2013
388199

Return
Passing the same index for the Item Index and the Relative Index parameters of the AreTreeItemsRelated function returns the incorrect value for some relationships.
If the Item Index and the Relative Index parameters are the same, the function should always return 0 indicating that they are not related through the specified relationship. However, the function returns 1 for the Sibling and All relationships.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2013    Added: 02/21/2013
275954

Return
Setting the ATTR_FIRST_VISIBLE_LINE attribute does not cause a text box control to redraw in some cases.
If the first visible line is partially shown and this same line is set for the ATTR_FIRST_VISIBLE_LINE attribute, then it will not cause the text box control to redraw. The first visible line can be only partially shown if the text box control is scrolled using the scroll bar.

Workaround: N/A

Reported Version: 7.0    Resolved Version: 2012    Added: 08/05/2013
386878

Return
The DisplayImageFile function uses more memory than is necessary.
The function might use up to four times as much memory as the size of the file.

Workaround: N/A

Reported Version: 3.0    Resolved Version: 2013    Added: 08/05/2013
391657

Return
The value of the eventData1 parameter is always 1 in a callback for an EVENT_COMMIT event of a graph cursor that is locked.

Workaround: N/A

Reported Version: 9.0    Resolved Version: 2013    Added: 08/05/2013
392640

Return
Cannot duplicate panels with controls that are duplicated and attached to a splitter control.
You will receive error -153: "Item is already attached to splitter control."

Workaround: N/A

Reported Version: 7.1    Resolved Version: 2013    Added: 08/05/2013
396304

Return
LabWindows/CVI might crash when running out of memory during a table copy operation.

Workaround: N/A

Reported Version: 8.1    Resolved Version: 2013    Added: 08/05/2013
403028

Return
Changing the value of ATTR_INTERPOLATE_PIXELS can leave the plot with extraneous data.

Workaround: N/A

Reported Version: 4.0    Resolved Version: 2013    Added: 08/05/2013
413695

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Radial controls do not resize all elements proportionally.
Some controls will not scale all elements proportionally when the Scale Contents On Resize panel option is enabled and they are resized. Radial controls such as the gauge, meter, and knob must maintain a consistent aspect ratio for the radial portion of the control. However, this is not necessary for some elements of the control such as the label. These elements will not be scaled the same. This can cause elements to become misaligned or overlap.

Workaround: Use the splitter control to resize controls rather than the Scale Contents On Resize option. Refer to the docking.cws example for details on how to accomplish this with splitter controls.

Reported Version: 5.0    Resolved Version: N/A    Added: 08/05/2013

Document last updated on 8/1/2013

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