GObject
        GtkObject
            GnomeCanvasItem
                GnomeCanvasShape
                    GnomeCanvasBpath
                    GnomeCanvasRE
                        GnomeCanvasEllipse
                        GnomeCanvasRect
                    GnomeCanvasPolygon
                GnomeCanvasGroup
                    GnomeCanvasClipgroup
                GnomeCanvasLine
                GnomeCanvasPixbuf
                GnomeCanvasRichText
                GnomeCanvasText
                GnomeCanvasWidget
            GtkWidget
                GtkContainer
                    GtkLayout
                        GnomeCanvas
            GtkAdjustment
        GdkDrawable
        GtkStyle
        GdkDragContext
        GdkScreen
        GdkPixbuf
    GInterface
        AtkImplementorIface