midiOutReset - Win32 Multimedia Programmer's Reference

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midiOutReset

The midiOutReset function turns off all notes on all MIDI channels for the specified MIDI output device.

MMRESULT midiOutReset(

HMIDIOUT hmo
);

Parameters
hmo

Handle of the MIDI output device. This parameter can also be the handle of a MIDI stream cast to HMIDIOUT.

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

MMSYSERR_INVALHANDLE

The specified device handle is invalid.

Remarks
Any pending system-exclusive or stream output buffers are returned to the callback function and the MHDR_DONE flag is set in the dwFlags member of the MIDIHDR structure.

Terminating a system-exclusive message without sending an EOX (end-of-exclusive) byte might cause problems for the receiving device. The midiOutReset function does not send an EOX byte when it terminates a system-exclusive message

applications are responsible for doing this.

To turn off all notes, a note-off message for each note in each channel is sent. In addition, the sustain controller is turned off for each channel.

See Also
MIDIHDR

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