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detect_midi_driver(3)		Allegro	manual		 detect_midi_driver(3)

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 re-
       turns 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(3), reserve_voices(3)

Allegro				 version 4.4.2		 detect_midi_driver(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO

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