Quote Originally Posted by Darkhog View Post
Can't speak on SDL, but in case of Allegro and Allegro.pas in latter all functions/variables/procedures names start with al_ prefix, probably because we already have things like readkey, keypressed, etc.
I belive AL_ prefix was chosen by Nüno Martínez itself to distinguish which functions originate from allegro.pas and which from other parts of code.
If you take a look at other libraries almost all of them use specific prefixes for the same reson.