GNU bug report logs - #51490
Show an indicator when Emacs is busy somewhere in the Emacs window

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: gregory <at> heytings.org, stefan <at> marxist.se, 51490 <at> debbugs.gnu.org
Subject: bug#51490: Show an indicator when Emacs is busy somewhere in the Emacs window
Date: Thu, 22 Sep 2022 15:33:42 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Cc: Gregory Heytings <gregory <at> heytings.org>,  stefan <at> marxist.se,
>   51490 <at> debbugs.gnu.org
> Date: Thu, 22 Sep 2022 12:54:41 +0200
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> >> Aren't they the simplest graphical element drawn by Emacs, a simple 
> >> black-and-white bitmap?
> >
> > No, they aren't.  They are certainly not black-and-white: they use
> > faces.
> 
> They use faces to get at the colours, but nothing beyond that, I think?

Yes, only the colors.  But accessing the faces means you cannot do
that while the Lisp machine is doing something.

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