In terms of file redistribution, the BeOS platform behaves practically the same as the DOS platform. Read section chapter "Dos specifics" in the manual to learn more about this.
See also: set_gfx_mode.
      DIGI_AUTODETECT      - let Allegro pick a digital sound driver
      DIGI_NONE            - no digital sound
      DIGI_BEOS            - BeOS digital outputSee also: detect_digi_driver, install_sound, install_sound_input.
      MIDI_AUTODETECT      - let Allegro pick a MIDI sound driver
      MIDI_NONE            - no MIDI sound
      MIDI_BEOS            - BeOS MIDI output
      MIDI_DIGMID          - sample-based software wavetable player
See also: detect_midi_driver, install_sound, install_sound_input.