|Microsoft DirectX 9.0|
The JoinFilterGraph method sends EC_WINDOW_DESTROYED event notification when a filter is removed from the filter graph.
HRESULT JoinFilterGraph( IBaseFilterGraph *pGraph, LPCWSTR pName );
Pointer to the filter graph to join.
[in, string] Pointer to the name of the filter being added.
No return value.
This member function overrides the CBaseFilter::JoinFilterGraph member function. If the filter is leaving the filter graph (pGraph is null), it sends an EC_WINDOW_DESTROYED event notification so that the resource manager does not hold on to the renderer as a focus object.