man lock_midi () - Locks all the memory used by a MIDI file. Allegro game programming library.
NAME
lock_midi - Locks all the memory used by a MIDI file. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void lock_midi(MIDI *midi);
DESCRIPTION
Under DOS, locks all the memory used by a MIDI file. You don't normally need to call this function because load_midi() does it for you.