BitmapButton shows focus erroneously

[Jeffrey Barish]

Robin Dunn wrote:

> Also, when the window is
> restored the control that last had the focus will get another focus
> event as the focus is restored, so be sure that there isn't anything
> that could go wonky if the control that it thinks already has the focus
> gets it again.

Not only do I get multiple set focus events, but I also get a kill focus
event on the window that should have the focus.  Normally it is immediately
reversed by a set focus event, but my code was not handling that duple
correctly.  Now I detect whether the kill/set duple is directed to the
window that already has the shading.  If so, I don't make any changes to
the background shading.  Works great now without a paint event handler.

Thanks again for the help.
-- 
Jeffrey Barish