load_midi_patches - Forces the MIDI driver to load a set of patches. Allegro game programming library.

       Forces  the  MIDI  driver to load the entire set of patches ready for use.  You will not normally need to
       call this, because Allegro automatically loads whatever data is required for the current MIDI  file,  but
       you must call it before sending any program change messages via the midi_out() command.

       load_midi_patches - Forces the MIDI driver to load a set of patches. Allegro game programming library.

       Returns non-zero if an error occurred.

install_sound(3alleg4), midi_out(3alleg4)

Allegro                                           version 4.4.3                       load_midi_patches(3alleg4)

#include<allegro.h>intload_midi_patches();