[wxPython] Confining the mouse

Hey all. I'm looking for a way to confine the mouse to a window
while the button is being held. To give you an idea of the layout
I'm considering, I'm using sizers to manage a layout that looks
roughly like this:

    space space space
    wxWindow wxWindow space
    space wxWindow space

  I want to perform zooming within the center window. The zoom window
appears when the mouse is depressed within the center window and I
want to confine it to that window until the button is lifted. Anyone
done something similar or have any pointers?

             Thanks

                    -- Mike

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--
Michael Gilfix
mgilfix@eecs.tufts.edu

For my gpg public key:
http://www.eecs.tufts.edu/~mgilfix/contact.html