From: mejorm AT aol DOT com (Mejorm)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Scrolling+sprites
Date: 27 Nov 1997 18:10:10 GMT
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To: djgpp AT delorie DOT com
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I am coding a 2-D Red Alert Style thing, and ran into similar 
problems.  Eventually, I gave up on the scroll_screen function
all together.  In your code outline, I notcied you are already 
using a blit to the buffer for the background.  Try putting a variable
in there to move around, instead of using scroll screen.
like 
BITMAP *background, *active_page;
background=create_bitmap(1000,1000); 
active_page=create_bitmap(800,600);

then load everything onto the active_page bitmap for screen print
To scroll, I simply blit a different section of the background image to the
active page.
(Any time I change the x,y coordinate of the "view", I also adjust
the x/y coordinate of the sprites by the same amount)
I am new to the allegro library and DJGPP in general.  But I hope the advise is
good. In general, I could not get results from scroll screen.  Anyone out there
correct me if that "general advise" s poor.