EVENT_COLLAPSE
Description
When a user collapses a tree item, LabWindows/CVI generates an EVENT_COLLAPSE event and sends the event to the callback function associated with the tree control.
This event is swallowable. Return 1 to swallow EVENT_COLLAPSE.
Applies To
Event Data Parameters
| Action | Event Data Values |
|---|---|
| Right-clicking and selecting Collapse All | eventData1 = VAL_ALL eventData2 = 0 |
| Right-clicking and selecting Collapse Subtree | eventData1 = VAL_DESCENDENT eventData2 = itemIndex |
| Clicking the minus sign or pressing the left arrow | eventData1 = 0 eventData2 = itemIndex |
LabWindows/CVI Compatibility
LabWindows/CVI 7.0 and later