Added some stubs for CLSID_FilterGraph.

diff --git a/dlls/quartz/fgraph.h b/dlls/quartz/fgraph.h
index adc9f90..46f132e 100644
--- a/dlls/quartz/fgraph.h
+++ b/dlls/quartz/fgraph.h
@@ -10,6 +10,7 @@
 		+ IFilterGraph - IGraphBuilder - IFilterGraph2
 		+ IDispatch - IMediaControl
 		+ IDispatch - IMediaEvent - IMediaEventEx
+		+ IDispatch - IMediaPosition
 		+ IMediaSeeking
 		+ IDispatch - IBasicVideo (pass to a renderer)
 		+ IDispatch - IBasicAudio (pass to a renderer)
@@ -23,12 +24,62 @@
 	ICOM_VFIELD(IFilterGraph2);
 } FG_IFilterGraph2Impl;
 
+typedef struct FG_IMediaControlImpl
+{
+	ICOM_VFIELD(IMediaControl);
+} FG_IMediaControlImpl;
+
+typedef struct FG_IMediaEventImpl
+{
+	ICOM_VFIELD(IMediaEventEx);
+} FG_IMediaEventImpl;
+
+typedef struct FG_IMediaPositionImpl
+{
+	ICOM_VFIELD(IMediaPosition);
+} FG_IMediaPositionImpl;
+
+typedef struct FG_IMediaSeekingImpl
+{
+	ICOM_VFIELD(IMediaSeeking);
+} FG_IMediaSeekingImpl;
+
+typedef struct FG_IBasicVideoImpl
+{
+	ICOM_VFIELD(IBasicVideo2);
+} FG_IBasicVideoImpl;
+
+typedef struct FG_IBasicAudioImpl
+{
+	ICOM_VFIELD(IBasicAudio);
+} FG_IBasicAudioImpl;
+
+typedef struct FG_IVideoWindowImpl
+{
+	ICOM_VFIELD(IVideoWindow);
+} FG_IVideoWindowImpl;
+
+
 typedef struct CFilterGraph
 {
 	QUARTZ_IUnkImpl	unk;
 	FG_IFilterGraph2Impl	fgraph;
+	FG_IMediaControlImpl	mediacontrol;
+	FG_IMediaEventImpl	mediaevent;
+	FG_IMediaPositionImpl	mediaposition;
+	FG_IMediaSeekingImpl	mediaseeking;
+	FG_IBasicVideoImpl	basvid;
+	FG_IBasicAudioImpl	basaud;
+	FG_IVideoWindowImpl	vidwin;
 
 	/* IFilterGraph2 fields. */
+	/* IMediaControl fields. */
+	/* IMediaEvent fields. */
+	/* IMediaPosition fields. */
+	/* IMediaSeeking fields. */
+	/* IBasicVideo fields. */
+	/* IBasicAudio fields. */
+	/* IVideoWindow fields. */
 } CFilterGraph;
 
 #define	CFilterGraph_THIS(iface,member)		CFilterGraph*	This = ((CFilterGraph*)(((char*)iface)-offsetof(CFilterGraph,member)))
@@ -36,6 +87,13 @@
 HRESULT QUARTZ_CreateFilterGraph(IUnknown* punkOuter,void** ppobj);
 
 void CFilterGraph_InitIFilterGraph2( CFilterGraph* pfg );
+void CFilterGraph_InitIMediaControl( CFilterGraph* pfg );
+void CFilterGraph_InitIMediaEventEx( CFilterGraph* pfg );
+void CFilterGraph_InitIMediaPosition( CFilterGraph* pfg );
+void CFilterGraph_InitIMediaSeeking( CFilterGraph* pfg );
+void CFilterGraph_InitIBasicVideo2( CFilterGraph* pfg );
+void CFilterGraph_InitIBasicAudio( CFilterGraph* pfg );
+void CFilterGraph_InitIVideoWindow( CFilterGraph* pfg );
 
 
 #endif	/* WINE_DSHOW_FGRAPH_H */