Provided by: allegro5-doc_5.0.10-2_all 
NAME
al_get_mixer_playing - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro_audio.h>
bool al_get_mixer_playing(const ALLEGRO_MIXER *mixer)
DESCRIPTION
Return true if the mixer is playing.
SEE ALSO
al_set_mixer_playing(3alleg5).