The IDirectSound3DBuffer::GetAllParameters method retrieves information that describes the 3-D characteristics of a sound buffer at a given point in time.
HRESULT GetAllParameters(
  LPDS3DBUFFER lpDs3dBuffer  
);
 If the method succeeds, the return value is DS_OK.
If the method fails, the return value may be DSERR_INVALIDPARAM.
  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.