Message-Id:	<3.0.6.32.19990225014929.008f09b0@pop.globalserve.net>
X-Sender:	derbyshire AT pop DOT globalserve DOT net
X-Mailer:	QUALCOMM Windows Eudora Light Version 3.0.6 (32)
Date:	Thu, 25 Feb 1999 01:49:29 -0500
To:	djgpp AT delorie DOT com
From:	Paul Derbyshire <pderbysh AT usa DOT net>
Subject:	Re: Mode switch problem Win / Allegro / Trident
In-Reply-To:	<19990223055739.AAC7224@jackal.intekom.com.intekom.co.za@de
	fault>
Mime-Version:	1.0
Reply-To:	djgpp AT delorie DOT com

At 07:42 AM 2/23/99 -0800, you wrote:
>I have an interesting issue (not a problem) when running Allegro programs
>that use 16 bit hicolor on my 4meg AGP trident card:
>
>If I keep the dos box in Windoze's "window" mode - i. e. I run the
>particular program in windows 16 bit color, it switched to text then to the
>allegro program itself this works fine. Sometimes tho (varies between 3 or
>4 times) when the Allegro program exists it solidly crashes windows,
>requireing a  reset or reboot.
>
>Any idea why? THe whole shebang worx 100% if the DOS box is in full screen
>TEXT mode. The weirdest is - why does it work 3 or 4 times (sometimes 5 if
>I am lucky (!)) and then crash, and why not just crash the first time?!

Judging by the symptoms (solid hangs, irreproducible, inexplicable, coming
from well-formed code, and occurring with graphics in a windowed DOS
program) I would say you can lay the blame for this solidly at the feet of
Mr. Gates. <g>

-- 
   .*.  "Clouds are not spheres, mountains are not cones, coastlines are not
-()  <  circles, and bark is not smooth, nor does lightning travel in a
   `*'  straight line."    -------------------------------------------------
        -- B. Mandelbrot  |http://surf.to/pgd.net
_____________________ ____|________     Paul Derbyshire     pderbysh AT usa DOT net
Programmer & Humanist|ICQ: 10423848|

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