|Microsoft DirectX 9.0|
The Notify method notifies the pin that a quality change is requested. This method implements the IQualityControl::Notify method.
HRESULT Notify( IBaseFilter *pSelf, Quality q );
Pointer to the filter that is sending the quality-control message.
Quality structure that contains the quality-control message.
Filters usually pass quality-control messages to an upstream output pin, not to an input pin. Therefore, this method returns S_OK without doing anything.