GNU bug report logs - #15913
24.3.50; regression: mouse-face does not stay on (turn-off due to tooltip?)

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From: Drew Adams <drew.adams <at> oracle.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 15913 <at> debbugs.gnu.org
Subject: bug#15913: 24.3.50; regression: mouse-face does not stay on (turn-off due to tooltip?)
Date: Fri, 29 Nov 2013 07:35:43 -0800 (PST)

> > There is no mouseover problem in Emacs 24.3 or prior, but the flickering
> > of the menu bar is there.  However, there is no such flickering with
> > Emacs 20 at all.
> 
> The display engine got almost completely rewritten for Emacs 21.1.
> Previous versions could assume that the menu bar doesn't need to
> change too frequently, but later versions cannot.

Good to know that reason.

> > (I no longer have Emacs 21, so AFAICT the flickering problem starts
> > with Emacs 22.)
> 
> I'm quite sure it's 21.1.

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