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midiInAddBuffer function (mmeapi.h)

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

Syntax

MMRESULT midiInAddBuffer(
  HMIDIIN   hmi,
  LPMIDIHDR pmh,
  UINT      cbmh
);

Parameters

hmi

Handle to the MIDI input device.

pmh

Pointer to a MIDIHDR structure that identifies the buffer.

cbmh

Size, in bytes, of the MIDIHDR structure.

Return value

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

Return code Description
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.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header mmeapi.h (include Windows.h)
Library Winmm.lib
DLL Winmm.dll

See also

MIDI Functions