From:	Robert Robbins <rrobbins AT sunlink DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Interrupt Handler
Date:	Mon, 13 Apr 1998 19:04:09 -0400
Organization:	SunLink
Lines:	19
Message-ID:	<353299E9.AEE34BC5@sunlink.net>
Reply-To:	rrobbins AT sunlink DOT net
NNTP-Posting-Host:	wmpt022.sunlink.net
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hello Programmers,

I've downloaded lots of information on using interrupts in DJGPP
but most of the examples merely illustrate using one for a counter.
I want to execute a function which uses putpixel while a sprite can
still
be moved with the arrow keys. ALLEGRO's install_int function
only illustrates using a counter.
I have the book "Programming Computer Games In C" by Robert
S. Marmelstein which explains the _dos_setvect  function and ISRs but
that only works in MS-DOS real mode. The code in this book requires
an early version of Visual C++ which is capable of developing MS-DOS
applications with graph.h. Fortunately, the "Visual C++ Programmer's
Starter Kit" includes a Windows 3.1 CD-ROM with the necessary version
of the compiler! However, I don't want to abandon DJGPP and ALLEGRO
for something else unless I have to.

Robert Robbins

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