Function name: midiOutShortMsg

Defined in : winmm

Requirements : Windows NT 3.1 or later; Windows 95 or later

Declaration:

Declare Function midiOutShortMsg Lib "winmm.dll" (ByVal hMidiOut As Long, ByVal dwMsg As Long) As Long

Parameters:

* hmo Handle of the MIDI output device. This parameter can also be the handle of a MIDI stream cast to HMIDIOUT. * dwMsg MIDI message. The message is packed into a doubleword value with the first byte of the message in the low-order byte. The message is packed into this parameter as follows: High word High-order byte Not used. Low-order byte Contains a second byte of MIDI data (when needed). Low word High-order byte Contains the first byte of MIDI data (when needed). Low-order byte Contains the MIDI status. The two MIDI data bytes are optional, depending on the MIDI status byte. When a series of messages have the same status byte, the status byte can be omitted from messages after the first one in the series, creating a running status. Pack a message for running status as follows: High word High-order byte Not used. Low-order byte Not used. Low word High-order byte Contains a second byte of MIDI data (when needed). Low-order byte Contains the first byte of MIDI data.

Returns:

Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following: MIDIERR_BADOPENMODE The application sent a message without a status byte to a stream handle. MIDIERR_NOTREADY The hardware is busy with other data. MMSYSERR_INVALHANDLE The specified device handle is invalid.

Related functions:

Examples:

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