capWaveStreamCallback
The capWaveStreamCallback function is the callback function used with streaming capture to optionally process buffers of audio data. The name capWaveStreamCallback is a placeholder for the application-supplied function name.
To set the callback, send the WM_CAP_SET_CALLBACK_WAVESTREAM message to the capture window or call the capSetCallbackOnWaveStream macro.
LRESULT CALLBACK capWaveStreamCallback(
HWND hWnd,
LPWAVEHDR lpWHdr
);
Parameters
hWnd
Handle to the capture window associated with the callback function.
lpWHdr
Pointer to a WAVEHDR structure containing information about the captured audio data.
Remarks
The capture window calls a wave stream callback function when an audio buffer is marked done by the waveform-audio driver. When capturing to disk, this will precede the disk write operation.
Requirements
** Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
** Windows 95/98/Me:** Included in Windows 95 and later.
** Header:** Declared in Vfw.h.
** Library:** Use Vfw32.lib.
See Also