WIM_DATA message
The WIM_DATA message is sent to the given waveform-audio input callback function when waveform-audio data is present in the input buffer and the buffer is being returned to the application. The message can be sent when the buffer is full or after the waveInReset function is called.
WIM_DATA
dwParam1 = (DWORD) lpwvhdr
dwParam2 = reserved
Parameters
-
dwParam1
-
Pointer to a WAVEHDR structure that identifies the buffer containing the data.
-
dwParam2
-
Reserved; must be zero.
Return Value
This message does not return a value.
Remarks
The returned buffer might not be full. Use the dwBytesRecorded member of the WAVEHDR structure specified by lpwvhdr to determine the number of bytes recorded into the returned buffer.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|