We use click on a tooltip that is displayed over a treelist column the tooltip receive to focus and mouse events are not forwarded to the treelist control.
So a simple click over a tooltip did not select treelist item as it does when the tooltip is not displayed.
Deleting all items when moving the vertical scroll bar will cause the left mouse button to lock in the current interface。ReleaseCapture must be called before DeleteAllItem to solve the problem
We use click on a tooltip that is displayed over a treelist column the tooltip receive to focus and mouse events are not forwarded to the treelist control. So a simple click over a tooltip did not select treelist item as it does when the tooltip is not displayed.