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Mail Archives: djgpp/1999/04/25/06:09:14

Date: Sun, 25 Apr 1999 13:06:59 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: Samir Barjoud <samir AT mindspring DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: Windows trashes my 800x600 graphics mode program.
In-Reply-To: <wkwvz1t60c.fsf@mindspring.com>
Message-ID: <Pine.SUN.3.91.990425130521.15058B-100000@is>
MIME-Version: 1.0
Reply-To: djgpp AT delorie DOT com
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On 25 Apr 1999, Samir Barjoud wrote:

> > That's the catch: there isn't any (at least AFAIK).  If anybody knows
> > how to achieve this, I'd certainly like to add that to the FAQ.
> 
> .................................................................
> Interrupt 2Fh Function 4001h 
> 
> mov ax, 4001h   ; Notify Background Switch
> int 2fh

Did you try to hook these functions?  I think you won't see them called 
in a DPMI DOS session.

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