The GetAllParameters method retrieves the parametric equalizer parameters of a buffer.
HRESULT GetAllParameters( LPDSFXParamEq pDsFxParamEq );
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 Dsdmo.dll.