debian man page for get_hardware_volume

get_hardware_volume(3alleg4)					  Allegro manual				      get_hardware_volume(3alleg4)

NAME
       get_hardware_volume - Retrieves the hardware sound output volume. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void get_hardware_volume(int *digi_volume, int *midi_volume);

DESCRIPTION
       Retrieves the hardware sound output volume, both for digital samples and MIDI playback, as integers from 0 to 255, or -1 if the information
       is not available. Parameters digi_volume and midi_volume must be valid pointers to int, or NULL if not interested in specific value.

SEE ALSO
       set_hardware_volume(3alleg4), get_volume(3alleg4)

Allegro 							   version 4.4.2				      get_hardware_volume(3alleg4)