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    GObject
    ╰── GInitiallyUnowned
        ╰── GtkObject
            ╰── GtkWidget
                ╰── GtkContainer
                    ╰── GtkBox
                        ╰── GtkVBox
                            ╰── GtkGammaCurve
GtkGammaCurve implements AtkImplementorIface, GtkBuildable and GtkOrientable.
GtkWidget *
gtk_gamma_curve_new (void);
gtk_gamma_curve_new is deprecated and should not be used in newly-written code.