Object Hierarchy

    GObject
        GnomeScanBackend
        GTypeModule
            GnomeScanModule
        GnomeScanModuleManager
        GnomeScanSettings
        GnomeScanPlugin
            GnomeScanner
            GnomeScanSink
                GnomeScanPreviewSink
            GnomeScanProcessorCommon
        GnomeScanJob
        GInitiallyUnowned
            GtkObject
                GtkWidget
                    GtkContainer
                        GtkBin
                            GtkWindow
                                GtkDialog
                                    GnomeScanAcquisitionDialog
                                    GnomeScanDialog
                        GtkBox
                            GtkHBox
                                GnomeScanParamWidget
                    GtkDrawingArea
                        GnomeScanPreviewArea
    GnomeScanPreviewPlugin
        GnomeScanPreviewPluginRotation
        GnomeScanPreviewPluginArea