allegro: Allegro is a game programming library for C/C++ allegro: allegro: Allegro is a game programming library for C/C++ developers allegro: distributed freely, supporting the following platforms: DOS, Unix allegro: (Linux, FreeBSD, Irix, Solaris, Darwin), Windows, QNX, BeOS and allegro: MacOS X. It provides many functions for graphics, sounds, player allegro: input (keyboard, mouse and joystick) and timers. It also provides allegro: fixed and floating point mathematical functions, 3d functions, file allegro: management functions, compressed datafile and a GUI. allegro: allegro: