Sorry, my fault.
There are two different EVT_ signatures, EVT_(self, func)
and EVT_(self, id, func) but there is no EVT_(id, func).
Both _CLOSE and _LEAVE_WINDOW are of the first kind.
There is one example in the demo dir, wxDragImage.py which
uses EVT_LEAVE_WINDOW.HTH, /Jean Brouwers
Thank you.
The handler for EVT_LEAVE_WINDOW from wxDragImage.py also doesn't work (I made it to write something to the log window and it does not do this). However within the EventManager demo the handler for EVT_LEAVE_WINDOW is called, just that... it registers EVT_LEAVE_WINDOW with the eventManager 
I don't wanna do that.
eventManager.Register(self.setNormal, EVT_LEAVE_WINDOW, self.tile)
Cristina.