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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

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Mmsystem.h (include Windows.h)

Library

Winmm.lib

DLL

Winmm.dll

See also

MIDI Functions

 

 

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