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Man Pages


Manual Reference Pages  -  DETECT_MIDI_DRIVER (3)

NAME

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

CONTENTS

Synopsis
Description
See Also

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(3), reserve_voices(3)
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Allegro DETECT_MIDI_DRIVER (3) version 4.4.2

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