From:	"Chewbaklava" <kalit AT ctel DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Graphics
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Message-ID:	<tB8J4.1635$O2.25478@harpo>
Date:	Wed, 12 Apr 2000 20:30:18 -0400
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

I was starting work on my own graphics library, not to compete with anything
like Allegro, because it surely can't hold up, but just to see how it all
works.  My question is this, I see people set mode 13h 2 ways, both work
fine.  is there any differance between saying (and I'm doing this from
memory, so if the syntax is a little wrong...)

union REGS regs;
regs.x.ax = 0x13;
int86(0x10, &reg, &regs);

and

__dpmi_regs r;
r.x.ax = 0x13;
__dpmi_int(0x10, &r);

Both of these methods work, and as far as I can see do absolutly the same
thing.

Also, plotting a pixel.  I've seen a method with a char * that points to the
video memory (0xA0000 right?) and I've seen it done with farpokew, farpokel
and farpokeb (the w, l and b stand for word, long and byte, right??).  This
is speed sensitive, so I would like to know, what does farpokeb do
exactly???  If there are other methods here, I would also like to know
because I want to get this cleared up before I move on to mode-x.

 - Dogansmoobs
The grape moos hotly
Manly loser snaps at beach
Screwdrivers are green

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