midiOutMessage function

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.

Syntax

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 value

Returns the value returned by the audio device driver.

Requirements

See also

MIDI Functions