From David Callu, adding support for GraphicsWindowX11 window inhertance and

setWindowName() method.

include/osgViewer/api/Win32/GraphicsWindowWin32

@@ -78,6 +78,9 @@ class OSGVIEWER_EXPORT GraphicsWindowWin32 : public osgViewer::GraphicsWindow
         
         /** Override from GUIActionAdapter.*/
         virtual void requestWarpPointer(float x,float y);
+
+        /** Set the name of the window */
+        virtual void setWindowName(const std::string& /*name*/);
         
         /** Switch on/off the cursor.*/
         virtual void useCursor(bool /*cursorOn*/);