man voice_get_volume () - Returns the current volume of the voice. Allegro game programming library.
NAME
voice_get_volume - Returns the current volume of the voice. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int voice_get_volume(int voice);
DESCRIPTION
Returns the current volume of the voice, range 0-255. Otherwise it returns -1 if that cannot be determined (because it has finished or been preempted by a different sound).