Object Hierarchy

    GObject
        GInitiallyUnowned
            GtkObject
                GtkWidget
                    GtkContainer
                        GtkBin
                            GtkWindow
                                AWeatherGui
        GisOpenGL
        GisWorld
        GisPrefs
        GisView
        GisPluginRadar
        GisPluginExample
        GisPluginRidge
    GInterface
        GisPlugin