Re: [XForms] Canvas / button interaction

[Clive Stubbings]

More bits of data..

Adding XFlush() and XSync() calls after the polygon draw makes no difference.

A redraw as a result of an expose event - eg window raise does result in correct 
drawing.

Interestingly, it can be any part of the window that is exposed - it
doesn't have to be the bit with the button in it, or the bit with the
canvas..

Two things that are different in the 2 cases are the clipping calls and
the value of flx->win, but it looks like they are not the problem.

Jens, any idea how to fake an expose event in Xforms? I'd like to see if what 
makes the difference is a real X-expose event or whether its something different 
in the xforms handling of expose vs draw.

Cheers
Clive