al_get_sample_instance_playing - Man Page

#include <allegro5/allegro_audio.h>

bool al_get_sample_instance_playing(const ALLEGRO_SAMPLE_INSTANCE *spl)

Return true if the sample instance is in the playing state. This may be true even if the instance is not attached to anything.

al_set_sample_instance_playing(3)

al_set_sample_instance_playing(3).