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)