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Re: [XForms] Canvas / button interaction

From: Clive Stubbings
Subject: Re: [XForms] Canvas / button interaction
Date: Fri, 10 Feb 2012 01:37:46 +0000 (GMT)

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

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.


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