| Microsoft DirectX 8.1 (C++) | 
The GetFilterGraph method retrieves the associated filter graph's IGraphBuilder interface.
Syntax
HRESULT GetFilterGraph(
    IGraphBuilder **ppGraphBuilder
    );
Parameters
ppGraphBuilder
[out] Address of a pointer to an IGraphBuilder interface that will point to the current filter graph.
Return Value
Returns S_OK if successful or E_POINTER if one or more of the required parameters are NULL.
See Also