Date: Sat, 12 May 2001 08:37:13 +0300
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: "Cody" <cody1 AT ktsnet DOT com>
Message-Id: <9003-Sat12May2001083713+0300-eliz@is.elta.co.il>
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CC: djgpp AT delorie DOT com
In-reply-to: <3afc6377@leia.ktsnet.com> (cody1@ktsnet.com)
Subject: Re: [OT] graphics routines
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> From: "Cody" <cody1 AT ktsnet DOT com>
> Newsgroups: comp.os.msdos.djgpp
> Date: Fri, 11 May 2001 17:00:59 -0500
> 
> How would I in DJGPP do the following:?  I have browsed the allegro game
> library but got nothing out of it (wayyyy too much code).  I can do the
> following in 16-bit does apps, but DJGPP's 32-bit protected mode poses a
> problem.  Links to the code or just replies with the code would certainly be
> appreciated.
> 
> 1.  get into different video modes (320x200 w/ 256 colors and more, 320x240
> w/ 256 colors and more, 640x480 w/ 256 colors and more, etc.)?
> 2.  put a pixel in those modes (any difference in them...?)?
> 3.  get back into 80x25 text mode?

Nate gave you some good answers.  I'd like to add that the DJGPP FAQ
list (v2/faq230b.zip from the same place you get DJGPP) explains these
issues in quite some detail in chapters 10 and 18.

> I'm unfamiliar with at&t style asm (plus I'm <beginner at intel style asm),
> and even if I knew at&t style asm I wouldn't be able to do it since I think
> 32-bit protected mode getting into graphics are different than what I have
> to do with turbo c++.

You don't need assembly to do any of the above.  Just use C and the
available library functions (some of them were mentioned by Nate,
others are in the FAQ).