Using NI LabVIEW In-Product Help

Included in the Section

Use the Context Help window and the LabVIEW Help to create and edit VIs.

Context Help Window


The Context Help window displays basic information about LabVIEW objects when you move the cursor over each object. To toggle display of the Context Help window select Help»Show Context Help, press the <Ctrl-H> keys, or click the Show Context Help Window button on the toolbar.

When you move the cursor over front panel and block diagram objects, the Context Help window displays the icon for subVIs, functions, constants, controls, and indicators, with wires attached to each terminal. When you move the cursor over dialog box options, the Context Help window displays descriptions of those options.

Figure 1. Context Help Window


Click the Show Optional Terminals and Full Path button located on the lower left corner of the Context Help window to display the optional terminals of a connector pane and to display the full path to a VI. Optional terminals are shown by wire stubs, informing you that other connections exist. The detailed mode displays all terminals, as shown in Figure 2. The labels of required terminals appear bold, recommended terminals appear as plain text, and optional terminals appear dimmed.

Figure 2. Detailed Context Help Window


Click the Lock Context Help button to lock the current contents of the Context Help window. When the contents are locked, moving the cursor over another object does not change the contents of the window. To unlock the window, click the button again. You also can access this option from the Help menu.


If a corresponding LabVIEW Help topic exists for an object the Context Help window describes, a blue Detailed help link appears in the Context Help window. Also, the Detailed help button is enabled. Click the link or the button to display the LabVIEW Help for more information about the object.

LabVIEW Help

The LabVIEW Help is the best source of detailed information about specific features and functions in LabVIEW. The LabVIEW Help offers conceptual topics, how-to topics with step-by-step instructions for using LabVIEW features, and complete reference information.

You can access the LabVIEW Help by clicking the blue Detailed help link or button in the Context Help window or by selecting Help»LabVIEW Help. You also can right-click an object and select Help from the shortcut menu.

After you install a LabVIEW add-on such as a toolkit, module, or driver, the documentation for that add-on appears in the LabVIEW Help or appears in a separate help system you access by selecting Help»Add-On Help, where Add-On Help is the name of the separate help system for the add-on.

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