From: Temujin <temujin AT sentex DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Interrupts
Date: Sat, 23 Aug 1997 23:16:59 -0700
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Jason D. Chu wrote:
> 
> Does anyone know how to preplace an interrupt with your own, while not
> affecting graphics?  If that makes sense.

If you have ALLEGRO, there is an undocumented command..
_install_irq(interruptnum,functionname);

(Found it snooping around in the source, makes things easy)
Otherwise, it will take a bit of work if your in a DPMI environment.