Well, i have seen several allegro programs and every time i try to run then i can't because it has a compiler error of header file of allegro missing. So do i have to download a library or something??
Srry for posting 2 allegro my internet lagged on me while i was uploading the topic...
Yeah, you gotta download the Allegro library:
http://alleg.sourceforge.net/
Once, i download it how do i making it run on all my files or is it automatic?
It depends on your compiler. If you use MinGW with Dev-C++, you can get the DevPak here:
http://devpaks.org/details.php?devpak=1