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Windows emacs menu bar redraw


From: Dave Schuyler
Subject: Windows emacs menu bar redraw
Date: Fri, 05 Jul 2002 15:55:59 -0700 (PDT)

Hi,

I'm using gnu emacs 21.2.1 on Windows 2000.

I've noticed that the menu bar will sometimes flicker and redraw.  I've seen 
this before in applications where some controls are bing told to redraw 
themselves, not just as needed, but very often.  The programmer may miss a bug 
like this because the redraw is exactly the same as what was there before, and 
if it's fast enough, or if there is no blanking, you can't see it.  If your 
machine slows down with other tasks, the flicker can become bothersome.  Also, 
the redraw is needlessly using cpu time.  Worse, someone else may immitate the 
code doing the needless redraws, thinking that there is nothing broken with the 
original code.

Anyway, it would be nice if someone would take care of it.

Thanks.




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