GNU bug report logs - #10397
[PATCH] Under Remote Desktop, NUMCOLORS is unreliable; workaround

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Package: emacs;

Reported by: Daniel Colascione <dancol <at> dancol.org>

Date: Thu, 29 Dec 2011 14:10:02 UTC

Severity: normal

Tags: patch

Fixed in version 24.3

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

Full log

Message #35 received at 10397 <at> debbugs.gnu.org (full text, mbox):

From: Jason Rumney <jasonr <at> gnu.org>
To: Daniel Colascione <dancol <at> dancol.org>
Cc: 10397 <at> debbugs.gnu.org
Subject: Re: bug#10397: [PATCH] Under Remote Desktop, NUMCOLORS is unreliable;
	workaround
Date: Fri, 30 Dec 2011 09:04:16 +0800

Daniel Colascione <dancol <at> dancol.org> writes:

> Under remote desktop, Windows returns the wrong number of colors from
> GetDeviceCaps (hdc, NUMCOLORS).  I hit this bug myself, and MSDN
> comments seem to indicate that others hit it as well.  The workaround
> seems harmless: on non-palettized displays, calculating the number of
> display colors based on display bitness should produce good results.

I've always been under the impression that this is deliberate, and
related to the bandwidth that is available, so at least applications
that want to improve performance over low bandwidth links can restrict
their use of colors.
This bug report was last modified 8 years and 240 days ago.

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