Provided by: allegro4-doc_22.214.171.124-1_all
install_timer - Installs the Allegro timer interrupt handler.
#include <allegro.h> int install_timer();
Installs the Allegro timer interrupt handler. You must do this before installing any user timer routines, and also before displaying a mouse pointer, playing FLI animations or MIDI music, and using any of the GUI routines.
Returns zero on success, or a negative number on failure (but you may decide not to check the return value as this function is very unlikely to fail).