capturing off-frame mouse events

[Alex Bligh]

Chris Haynes wrote:
> For a presentation drawing tool, I'd like to capture all mouse events, 
> not just those that occur inside my wx app frame (or drags that begin 
> inside the frame). I've figured out how to draw outside the frame with 
> ScreenDC, but also need the mouse events.
> 
> For my application the app outside the frame won't respond to the 
> events, so I don't care if my app consumes them or not, I just want to 
> get them.
> 
> wxPython2.6 under XP. I know this is possible in general (but maybe not 
> with wx), because various event logging software manages it.

Can you just put a frame-less wxFrame in full-screen mode over the
whole drawing, and set its background to be transparent? (doesn't
work on GTK, may work on XP). You may have to set it to be
/really/ transparent (using the XP API - see how wxAUI used
to do it on 2.6 at Kirix.com - or the 2.7 wxWidgets SetTransparent
API).

Alex