# DeleteGraphAnnotation

int DeleteGraphAnnotation (int panelHandle, int controlID, int annotationIndex);

## Purpose

Deletes the graph annotation at the specified 1-based index. If you pass –1 for annotationIndex, this function deletes all annotations for the specified 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 1-based index of the graph annotation to delete. If you pass –1 for the index, this function deletes all annotations for the specified graph.

## 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