DesktopWindow.DragEnter
From Xojo Documentation
Event
DesktopWindow.DragEnter(Obj as DragItem,Action as DragItem.Types) As Boolean
New in 2021r3
Supported for all project types and targets.
New in 2021r3
Supported for all project types and targets.
Fired when the DragItem enters the DesktopWindow. Return True from this event to prevent the drop from occurring.
Notes
The Action parameter specifies the type drag action (default, copy, move or link).