|Microsoft DirectX 9.0|
The SetDefault method makes the current property settings the global default.
This method takes no parameters.
Returns an HRESULT value.
All properties set through IDirectDrawVideo are specific to that particular instance. Call this method to make properties set on this instance of IDirectDrawVideo the global default of all DirectShow instances of this interface. After it is called, the current property settings will persist between the subsequent starting of other DirectShow filter graphs and between any computer restarts.