From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Removing assumption of unsigned long pixel values for colours
Date: Mon, 06 May 2019 19:54:59 +0300
Message-ID: <83d0kvjzfg.fsf@gnu.org>
References: <87v9yqjdnh.fsf@gmail.com> <83a7g2kqsi.fsf@gnu.org>
	<87lfzlkeic.fsf@gmail.com> <83zho0khdu.fsf@gnu.org>
	<87h8a8k84a.fsf@gmail.com> <83pnowjo63.fsf@gnu.org>
	<87d0kvk489.fsf@gmail.com> <83ftprk2nj.fsf@gnu.org>
	<874l67k0lp.fsf@gmail.com>
Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226";
	logging-data="113394"; mail-complaints-to="usenet@blaine.gmane.org"
Cc: emacs-devel@gnu.org
To: Alex Gramiak <agrambot@gmail.com>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon May 06 18:55:28 2019
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
Envelope-to: ged-emacs-devel@m.gmane.org
Original-Received: from lists.gnu.org ([209.51.188.17])
	by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256)
	(Exim 4.89)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>)
	id 1hNgtk-000TOC-Od
	for ged-emacs-devel@m.gmane.org; Mon, 06 May 2019 18:55:28 +0200
Original-Received: from localhost ([127.0.0.1]:59422 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>)
	id 1hNgtj-00066U-Q5
	for ged-emacs-devel@m.gmane.org; Mon, 06 May 2019 12:55:27 -0400
Original-Received: from eggs.gnu.org ([209.51.188.92]:56050)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <eliz@gnu.org>) id 1hNgtZ-000659-Lk
	for emacs-devel@gnu.org; Mon, 06 May 2019 12:55:18 -0400
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:41906)
	by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@gnu.org>)
	id 1hNgtZ-0007is-Gp; Mon, 06 May 2019 12:55:17 -0400
Original-Received: from [176.228.60.248] (port=4557 helo=home-c4e4a596f7)
	by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256)
	(Exim 4.82) (envelope-from <eliz@gnu.org>)
	id 1hNgtY-0004zq-9H; Mon, 06 May 2019 12:55:17 -0400
In-reply-to: <874l67k0lp.fsf@gmail.com> (message from Alex Gramiak on Mon, 06
	May 2019 10:29:38 -0600)
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.21
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-devel/>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org
Original-Sender: "Emacs-devel" <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
Xref: news.gmane.org gmane.emacs.devel:236201
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/236201>

> From: Alex Gramiak <agrambot@gmail.com>
> Cc: emacs-devel@gnu.org
> Date: Mon, 06 May 2019 10:29:38 -0600
> 
> > COLORREF is just the RGB representation of a color, see
> >
> >   https://docs.microsoft.com/en-us/windows/desktop/gdi/colorref
> 
> Right, but my point is that AFAIU the unsigned long value is used in a
> different manor (embedded rather than used to lookup a value) on the w32
> side, so it could be viewed that the representation of colors is already
> platform-dependent.

OK, but that just says that each platform already performs the mapping
you wanted to avoid.  What makes your back-end special that it needs
to avoid this?