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set_volume(3)                   Allegro manual                   set_volume(3)

NAME
       set_volume - Alters the global sound output volume. Allegro game
       programming library.

SYNOPSIS
       #include <allegro.h>

       void set_volume(int digi_volume, int midi_volume);

DESCRIPTION
       Alters the global sound output volume. Specify volumes for both digital
       samples and MIDI playback, as integers from 0 to 255, or pass a
       negative value to leave one of the settings unchanged. Values bigger
       than 255 will be reduced to 255. This routine will not alter the volume
       of the hardware mixer if it exists (i.e. only your application will be
       affected).

SEE ALSO
       install_sound(3), set_hardware_volume(3)

Allegro                          version 4.4.2                   set_volume(3)