Signal
GtkDropTarget::enter
Description [src]
Emitted on the drop site when the pointer enters the widget.
It can be used to set up custom highlighting.
| Default handler:  The default handler is called after the handlers added via   | 
Parameters
x- 
            
Type:
gdoubleThe x coordinate of the current pointer position.
 y- 
            
Type:
gdoubleThe y coordinate of the current pointer position.
 
Return value
Type: GdkDragAction
Preferred action for this drag operation or GDK_ACTION_NONE if
  dropping is not supported at the current x,y location.