GObject
        GInitiallyUnowned
            GtkObject
                GtkWidget
                    GtkContainer
                        GtkBox
                            GimpPreview
                                GimpAspectPreview
                                GimpScrolledPreview
                                    GimpDrawablePreview
                                    GimpZoomPreview
                            GimpSelectButton
                                GimpBrushSelectButton
                                GimpFontSelectButton
                                GimpGradientSelectButton
                                GimpPaletteSelectButton
                                GimpPatternSelectButton
                        GtkBin
                            GtkComboBox
                                GimpIntComboBox
                                    GimpChannelComboBox
                                    GimpDrawableComboBox
                                    GimpImageComboBox
                                    GimpLayerComboBox
                                    GimpVectorsComboBox
                            GtkWindow
                                GtkDialog
                                    GimpDialog
                                        GimpProcBrowserDialog
                    GtkProgress
                        GtkProgressBar
                            GimpProgressBar