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Mail Archives: djgpp/2000/06/14/07:30:21

From: Jason Green <news AT jgreen4 DOT fsnet DOT co DOT uk>
Newsgroups: comp.graphics.api.opengl,comp.os.msdos.djgpp
Subject: Re: mgl setup on msdos
Date: Tue, 13 Jun 2000 22:38:47 +0100
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To: djgpp AT delorie DOT com
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"Paul Cechner" <paul AT ibc DOT com DOT au DOT NOSPAM> wrote:

> has anyone here successfully set up mgl to run with djgpp for msdos?
> 
> i have (seemingly) set it up correctly, but when i compile the demo
> programs, i get exe files that seem to do nothing...
> 
> that is , i run the exe files and they return successfully without having
> done anything

Same results here, but with DOS under Windows 95.  

Warning: It's a while since I did this. ;-)

Some graphics modes and/or graphics cards are unsupported, so mgl will
not work in some situations.  The demo programs do not make full use
of error codes (or this information is not available, IIRC the
function QuickInit() is a culprit) so that is why they just quietly
return without doing anything.

What graphics card do you have and what version of the library are you
using?  That information will be useful to anyone trying to help.

> am i supposed to set the graphics mode myself or something?

Possibly you could fiddle with the demo code to try and figure out
what is failing.  

It would be a good idea to try your compiled binaries on a machine
with a different graphics card to confirm this as the problem.

You could also try an older or newer version of the library to see if
it better supports your graphics card / mode (if that is the problem).

Scitech also host mgl newsgroups on their news server, see the web
site for details.

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