[ Version ( since = "3.16" ) ]
public void drag_cancel (DragContext context)
Cancels an ongoing drag operation on the source side.
If you want to be able to cancel a drag operation in this way, you need to keep a pointer to the drag context, either from an explicit call to drag_begin_with_coordinates, or by connecting to drag_begin.
context does not refer to an ongoing drag operation, this function does nothing.
If a drag is cancelled in this way, the
result argument of
drag_failed is set to