Date: Tue, 9 Jul 1996 08:30:58 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: "James W. Haefner" <jim AT anolis DOT bnr DOT usu DOT edu>
Cc: djgpp AT delorie DOT com
Subject: Re: WinNT Graphics in DJGPP
In-Reply-To: <31E1395B.5B11@anolis.bnr.usu.edu>
Message-Id: <Pine.SUN.3.91.960709082700.1036C-100000@is>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


On Mon, 8 Jul 1996, James W. Haefner wrote:

> I use djgpp2 in WinNT and cannot get modetest.exe
> of GRX20
> to work properly.  It seems to find and list most of the 
> VESA modes okay, and when I select a EGA or VGA mode
> (e.g., 640x480, 16 colors) it works.  When I select a SVGA
> mode (800x600, 256 colors) it locks up (ie, all the status 
> lights on my Hitachi monitor light up and I have to kill
> the Command Prompt process to recover).
> 
> My video card is a S3 Vision968 (Diamond Stealth) with 4MB.

WinNT doesn't allow direct access to I/O ports, so most SVGA modes that 
need to talk to the adapter through the ports will fail.  Sorry.  There's 
talk about the next version 4.0 of NT that has a feature (called 
DirectX?) that will allow such access.