1detect_midi_driver(3)           Allegro manual           detect_midi_driver(3)
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NAME

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

10       #include <allegro.h>
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13       int detect_midi_driver(int driver_id);
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DESCRIPTION

16       Detects whether the specified MIDI  sound  device  is  available.  This
17       function must be called _before_ install_sound().
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RETURN VALUE

20       Returns  the  maximum  number of voices that the driver can provide, or
21       zero if the hardware is not present.
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23       There are two special-case return values that you should watch out for:
24       if  this  function returns -1 it is a note-stealing driver (eg. DIGMID)
25       that shares voices with the current digital sound  driver,  and  if  it
26       returns  0xFFFF it is an external device like an MPU-401 where there is
27       no way to determine how many voices are available.
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SEE ALSO

31       install_sound(3), reserve_voices(3)
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35Allegro                          version 4.2.3           detect_midi_driver(3)
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