detect_midi_driver

detect_midi_driver(3alleg4)      Allegro manual      detect_midi_driver(3alleg4)



NAME
       detect_midi_driver - Detects whether the specified MIDI sound device is
       available. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>


       int detect_midi_driver(int driver_id);

DESCRIPTION
       Detects whether the specified MIDI sound device is available. This
       function must be called _before_ install_sound().

RETURN VALUE
       Returns the maximum number of voices that the driver can provide, or zero
       if the hardware is not present.

       There are two special-case return values that you should watch out for:
       if this function returns -1 it is a note-stealing driver (eg. DIGMID)
       that shares voices with the current digital sound driver, and if it
       returns 0xFFFF it is an external device like an MPU-401 where there is no
       way to determine how many voices are available.


SEE ALSO
       install_sound(3alleg4), reserve_voices(3alleg4)



Allegro                           version 4.4.3      detect_midi_driver(3alleg4)