From:	leathm AT solwarra DOT gbrmpa DOT gov DOT au (Leath Muller)
Message-Id:	<199705140003.KAA29177@solwarra.gbrmpa.gov.au>
Subject:	Re: OpenDOS graphics drivers
To:	goehrigd AT gort DOT canisius DOT edu (randir)
Date:	Wed, 14 May 1997 10:03:35 +1000 (EST)
Cc:	opendos AT delorie DOT com
In-Reply-To:	<Pine.SOL.3.91.970513183742.12576B-100000@gort.canisius.edu> from "randir" at May 13, 97 06:46:32 pm

> > Well, the video-mem can be addressed as normal, by writing directly to
> > 0xA000 (in a RM program), but the things is Windows NT doens't know any
> > mode 13h !!!!!
> > At least not in NT 3.51.
 
> 	That's becaue mode 13h is a BIOS mode, and windows NT, like any
> 	32 bit operating system is not going to thunk around with the
> 	computer's bios... its going to use its own routines..
 
NT 3.51 doesn't allow access to the 0xA0000 memory area, but NT 4.0 does...
Any program that uses plain VGA and that memory area using either near or
far pointers will work under NT...

Leathal.

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