Fires when the user scrolls the tree vertically.
Parameters
| Parameter | Description |
|---|---|
| TopItem | The new top item |
Remarks
The OnVScroll event fires when the user scrolls the tree control whether by navigating with the keyboard or by moving the scroll bar. The TopItem parameter is the key to the new item at the top of the tree. Its value is the same as the TopItem property.
Example
Transfer Param1 to TopItem // Synchronize scrolling with another tree Set_Property(@Window:".OLE_TREE_OTHER", "OLE.TopItem", TopItem)
