Assigns a delegate to the dragEnter event.
public final void addOnDragEnter( DragEventHandler value )
value
The DragEventHandler delegate to be notified when the event occurs.
Passing an event handler as a parameter to this method is equivalent to setting the dragEnter event to that method in the Properties window. The dragEnter event occurs when the user moves the mouse pointer into the control while dragging an object with the mouse.
See Also removeOnDragEnter