Using midiOutShortMsg to Send Individual MIDI Mess

Using midiOutShortMsg to Send Individual MIDI Messages
The following example uses the midiOutShortMsg function to send a specified MIDI event to a given MIDI output device:

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UINT sendMIDIEvent(HMIDIOUT hmo, BYTE bStatus, BYTE bData1,
    BYTE bData2)
{
    union {
        DWORD dwData;
        BYTE bData[4];
    } u;
 
    // Construct the MIDI message.
 
    u.bData[0] = bStatus;  // MIDI status byte
    u.bData[1] = bData1;   // first MIDI data byte
    u.bData[2] = bData2;   // second MIDI data byte
    u.bData[3] = 0;
 
    // Send the message.
    return midiOutShortMsg(hmo, u.dwData);
}

Note  MIDI output drivers are not required to verify data before sending it to an output port. Applications must ensure that only valid data is sent.