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Date: Tue, 11 May 2004 18:45:44 +0200
From: "Eli Zaretskii" <eliz AT gnu DOT org>
Sender: halo1 AT zahav DOT net DOT il
To: djgpp AT delorie DOT com
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In-reply-to: <024b01c4373f$3d4bc660$0600000a@broadpark.no> (giva@bgnett.no)
Subject: Re: DJGPP and Windows XP
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> From: "Gisle Vanem" <giva AT bgnett DOT no>
> Date: Tue, 11 May 2004 12:03:42 +0200
> 
> Direct screen writes work fine, but slower than under DOS off-course.

They also disrupt the DOS box scrolling and dimensions.

> Fiddling with VGA registers is indeed dangerous. That's the reason
> I stay away using RHide under Win-XP. It messes up the SVGA-driver
> and screen-frequency in a major way so <Alt-Enter> does nothing here.

Amd that's the reason I decided at the time not to use such techniques
in the DJGPP port of Emacs, but stick to BIOS as the lowest interface
for video wizardry.