midiOutGetDevCaps

The midiOutGetDevCaps function queries a specified MIDI output device to determine its capabilities.

MMRESULT midiOutGetDevCaps(

UINT uDeviceID,
LPMIDIOUTCAPS lpMidiOutCaps,
UINT cbMidiOutCaps
);

Parameters

uDeviceID

Identifier of the MIDI output device. The device identifier specified by this parameter varies from zero to one less than the number of devices present. The MIDI_MAPPER constant is also a valid device identifier.

This parameter can also be a properly cast device handle.

lpMidiOutCaps

Address of a MIDIOUTCAPS structure. This structure is filled with information about the capabilities of the device.

cbMidiOutCaps

Size, in bytes, of the MIDIOUTCAPS structure. Only cbMidiOutCaps bytes (or less) of information is copied to the location pointed to by lpMidiOutCaps. If cbMidiOutCaps is zero, nothing is copied, and the function returns MMSYSERR_NOERROR.

Return Values

Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following:

MMSYSERR_BADDEVICEID	The specified device identifier is out of range.
MMSYSERR_INVALPARAM	The specified pointer or structure is invalid.
MMSYSERR_NODRIVER	The driver is not installed.
MMSYSERR_NOMEM	The system is unable to load mapper string description.

Remarks

To determine the number of MIDI output devices present in the system, use the midiOutGetNumDevs function.

See Also

MIDIOUTCAPS, midiOutGetNumDevs

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