Message-ID: <37D9D699.8BFA4EF6@gtcom.net>
From: Krogg <krogg DOT no DOT to DOT spam AT gtcom DOT net>
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Subject: c,allegro,coolness....
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Date: Sat, 11 Sep 1999 00:12:09 -0400
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Sorry if this is long winded but i dont know
how to explain it in a shorter way......

I wanted to get a screen shot from a
program i wrote yesterday.It draws
a random IFS type fractal on the screen
and if you press the [space] it clears the
screen and draws another else it exits.
I knoticed that pressing [print screen]
would not capture the screen so i made the
else part see if the key pressed was "c"
and if so do this:

save_pcx("ifs.pcx",screen,pallete);

But after looking at the .pcx file i knoticed that
it was not only the screen but the whole virtual
screen that was saved....not exactaly what i wanted
to happen...I read the allegro docs and it said 
try this instead:


===========begin snip from allegro docs===================

BITMAP *bmp;
PALETTE pal;

get_palette(pal);
bmp = create_sub_bitmap(screen, 0, 0, SCREEN_W, SCREEN_H);
save_bitmap("dump.pcx", bmp, pal);
destroy_bitmap(bmp); 

=============end snip from allegro docs===================

Well,I am lazy so i decided to try this instead:

save_pcx("ifs.pcx",create_sub_bitmap(screen, 0, 0, SCREEN_W,
SCREEN_H),pallete);

What a shortcut!...and,it worked great!

Is there anything wrong with doing stuff like this?
I mean,it worked,but is there some reason i shouldnt
do this kind of thing?

Anyway,this really makes me think that c and allegro
are totaly cool.

Be Cool,
 Krogg.




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