EVENT_EXPAND
- Updated2023-02-21
- 1 minute(s) read
EVENT_EXPAND
Description
When a user expands a tree item, LabWindows/CVI generates an EVENT_EXPAND event and sends the event to the callback function associated with the tree control.
This event is swallowable. Return 1 to swallow EVENT_EXPAND.
Applies To
Event Data Parameters
| Action | Event Data Values |
|---|---|
| Right-clicking and selecting Expand All | eventData1 = VAL_ALL eventData2 = 0 |
| Right-clicking and selecting Expand Subtree | eventData1 = VAL_DESCENDENT eventData2 = itemIndex |
| Clicking the plus sign or pressing the right arrow | eventData1 = 0 eventData2 = itemIndex |
LabWindows/CVI Compatibility
LabWindows/CVI 7.0 and later