MIM_LONGDATA message
The MIM_LONGDATA message is sent to a MIDI input callback function when a system-exclusive buffer has been filled with data and is being returned to the application.
MIM_LONGDATA
dwParam1 = (DWORD) lpMidiHdr
dwParam2 = dwTimestamp
Parameters
-
lpMidiHdr
-
Pointer to a MIDIHDR structure identifying the input buffer.
-
dwTimestamp
-
Time that the data was received by the input device driver. The time stamp is specified in milliseconds, beginning at zero when the midiInStart function was called.
Return Value
This message does not return a value.
Remarks
The returned buffer might not be full. To determine the number of bytes recorded into the returned buffer, use the dwBytesRecorded member of the MIDIHDR structure specified by lpMidiHdr.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|