midiOutMessage

The midiOutMessage function sends a message to the MIDI device drivers. This function is used only for driver-specific messages that are not supported by the MIDI API.

DWORD midiOutMessage(
  HMIDIOUT  deviceID, 
  UINT      msg, 
  DWORD_PTR dw1, 
  DWORD_PTR dw2  
);

Parameters

deviceID

Identifier of the MIDI device that receives the message. You must cast the device ID to the HMIDIOUT handle type. If you supply a handle instead of a device ID, the function fails and returns the MMSYSERR_NOSUPPORT error code.

msg

Message to send.

dw1

Message parameter.

dw2

Message parameter.

Return Values

Returns the value returned by the audio device driver.

Requirements

**  Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
**  Windows 95/98/Me:** Included in Windows 95 and later.
**  Header:** Declared in Mmsystem.h; include Windows.h.
**  Library:** Use Winmm.lib.

See Also

Musical Instrument Digital Interface (MIDI), MIDI Functions