# SetAnnotationAttribute

int SetAnnotationAttribute (int panelHandle, int controlID, int annotationNumber, int annotationAttribute, ...);

## Purpose

Sets the value of a graph annotation attribute. If –1 is passed in for annotationIndex, the annotation attribute will be set for all annotations on the graph.

## Parameters

Input
Name | Type | Description
panelHandle | integer | Specifier for a particular panel that is currently in memory. You obtain this handle from LoadPanel, NewPanel, or DuplicatePanel.
controlID | integer | The defined constant, located in the .uir header file, that you assigned to the control in the User Interface Editor, or the ID returned by NewCtrl or DuplicateCtrl.
annotationIndex | integer | The one-based index of the graph annotation whose attribute value you want to set. If you pass –1 for the index, LabWindows/CVI sets the specified attribute value for all annotations on the graph.
annotationAttribute | integer | The graph annotation attribute value to set. In the function panel, when you click the control or press <Enter>, <Spacebar>, or <Ctrl-down arrow>, a dialog box appears containing a hierarchical list of the available attributes. Attributes whose values cannot be obtained are dimmed. Help text is shown for each attribute. To select an attribute, double-click it or select it and then press <Enter>. If the attribute shown in this ring control has named constants as valid values, you can open a list of them by moving to the Attribute Value control and pressing <Enter>. The Attribute Values dialog box displays the values and value help for the constants.
attributeValue | any type (passed by value) | The value to which to set the annotation attribute. If the attribute shown in this ring control has named constants as valid values, you can open a list of them by pressing <Enter>. The Attribute Values dialog box displays the values and value help for the constants.

## Return Value

Name | Type | Description
status | integer | Return value indicating whether the function was successful. A negative number indicates that an error occurred.
Code | Error Message String
xx | Success