The IDirectSoundCaptureBuffer::Initialize method initializes a DirectSoundCaptureBuffer object if it has not yet been initialized.
HRESULT Initialize(
  LPDIRECTSOUNDCAPTURE lpDirectSoundCapture,  
  LPCDSBUFFERDESC lpcDSBufferDesc             
);
 If the method succeeds, the return value is DS_OK.
If the method fails, the return value may be one of the following error values:
| DSERR_INVALIDPARAM | 
| DSERR_ALREADYINITIALIZED | 
Because the IDirectSoundCapture::CreateCaptureBuffer method calls the IDirectSoundCaptureBuffer::Initialize method internally, it is not needed for the current release of DirectSound. This method is provided for future extensibility.
  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dsound.h.
  Import Library: Use dsound.lib.