midi_loop_start, midi_loop_end - Loop start and end points, set by
play_looped_midi(). Allegro game programming library.
extern long midi_loop_start;
extern long midi_loop_end;
The loop start and end points, set by the play_looped_midi() function. These may
safely be altered while the music is playing, but you should be sure they are
always set to sensible values (start < end). If you are changing them both
at the same time, make sure to alter them in the right order in case a MIDI
interrupt happens to occur in between your two writes! Setting these values to
-1 represents the start and end of the file respectively.