The GetAllParameters method retrieves all 3D parameters of the sound environment and the listener.
HRESULT GetAllParameters( LPDS3DLISTENER pListener );
If the method succeeds, the return value is DS_OK. If the method fails, the return value may be DSERR_INVALIDPARAM.
Header: Declared in Dsound.h.
Import Library: Use Dsound3d.dll.