WORD midiOutShortMsg(hMidiOut, dwMsg)
This function sends a short MIDI message to the specified MIDI output device. Use this function to send any MIDI message except for system exclusive messages.
HMIDIOUT hMidiOut
Specifies a handle to the MIDI output device.
DWORD dwMsg
Specifies the MIDI message. The message is packed into a DWORD with the first byte of the message in the low order byte.
Returns zero if the function was successful. Otherwise, it returns an error number. Possible error returns are:
MMSYSERR_INVALHANDLE
Specified device handle is invalid.
MIDIERR_NOTREADY
The hardware is busy with other data.
This function may not return until the message has been sent to the output device.
midiOutLongMsg