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RE: Emacs 22.1 Windows ClearType Support

From: Ng, Andrew
Subject: RE: Emacs 22.1 Windows ClearType Support
Date: Thu, 22 Nov 2007 17:24:56 -0500

Part of the reason that I needed a way to enable ClearType in Emacs is that by 
default I actually have ClearType disabled on my system. The reason for this is 
that I have a two LCD monitor setup but unfortunately, the two LCD monitors RGB 
order do not match. This effectively means that ClearType looks great on one 
display and not so good on the other. That's one thing Microsoft obviously 
didn't consider when implementing the ClearType support.
Because I mostly use Emacs on the one LCD monitor, I explicitly enable 
ClearType in Emacs.


From: Jason Rumney [mailto:address@hidden
Sent: Thu 22/11/2007 22:06
To: Drew Adams
Cc: Juanma Barranquero; Ng, Andrew; Emacs Devel
Subject: Re: Emacs 22.1 Windows ClearType Support

Drew Adams wrote:
> I haven't followed the problems reported with ClearType. But IIUC this patch 
> lets you turn ClearType on and off from within Emacs, using an environment 
> variable. If so, that's good.
> I find that ClearType is great with Emacs on Windows, but if it presents 
> problems in particular contexts (e.g. particular fonts or whatever), then 
> perhaps it would be worth having a toggle command to flip it?
The new font backend in emacs-unicode-2 lets you override antialiasing
on a case by case basis for each font. I think an environment variable
is the wrong solution for Emacs, and if the patch really fixes the
problems, then any option is unnecessary.

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