Object Hierarchy: xfce4-panel Reference Manual

# Object Hierarchy

        GObject
        ╰── GInitiallyUnowned
            ╰── GtkWidget
                ├── GtkContainer
                │   ╰── GtkBin
                │       ├── GtkButton
                │       │   ╰── GtkToggleButton
                │       │       ╰── XfceArrowButton
                │       ╰── GtkEventBox
                │           ╰── XfcePanelPlugin
                ╰── XfcePanelImage