The sample code in the DirectShow SDK has a small error

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IGraphBuilder * pGraph = NULL; ICaptureGraphBuilder2 * pBuild = NULL; // Create the Capture Graph Builder HRESULT hr = CoCreateInstance (CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC_SERVER, IID_ICaptureGraphBuilder2, (void **) & pGraph);. // error should be pBuild IGraphBuilder * pGraph = NULL; ICaptureGraphBuilder2 * pBuild = NULL; // Create the Capture Graph Builder HRESULT hr = CoCreateInstance (CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC_SERVER, IID_ICaptureGraphBuilder2, (void **) & pGraph).;