midiInAddBuffer

The midiInAddBuffer function sends an input buffer to a specified opened MIDI input device. This function is used for system-exclusive messages.

MMRESULT midiInAddBuffer(

Parameters
hMidiIn

Handle of the MIDI input device.

lpMidiInHdr

Address of a MIDIHDR structure that identifies the buffer.

cbMidiInHdr

Size, in bytes, of the MIDIHDR structure.

Return Values
Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following:

MIDIERR_STILLPLAYING	The buffer pointed to by lpMidiInHdr is still in the queue.
MIDIERR_UNPREPARED	The buffer pointed to by lpMidiInHdr has not been prepared.
MMSYSERR_INVALHANDLE	The specified device handle is invalid.
MMSYSERR_INVALPARAM	The specified pointer or structure is invalid.
MMSYSERR_NOMEM	The system is unable to allocate or lock memory.

Remarks
When the buffer is filled, it is sent back to the application.

The buffer must be prepared by using the midiInPrepareHeader function before it is passed to the midiInAddBuffer function.

See Also
MIDIHDR, midiInPrepareHeader

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