|Microsoft DirectX 9.0|
The AlterQuality method notifies the filter that a quality change is requested.
virtual HRESULT AlterQuality( Quality q );
Quality structure that contains the quality control message.
Returns an HRESULT value. Possible values include those shown in the following table.
|S_FALSE||Did not handle the quality message. The message should be passed upstream.|
|S_OK||Handled the quality message. No further action is necessary.|
The base class returns S_FALSE.
Override this method if the filter can perform quality control. For more information, see Quality-Control Management.