Warning gtk_gamma_curve_new has been deprecated since version 2.20 and should not be used in newly-written code. Don't use this widget anymore. Creates a new GtkGammaCurve.
ConstructionException GTK+ fails to create the object.
See Implementation
Warning gtk_gamma_curve_new has been deprecated since version 2.20 and should not be used in newly-written code. Don't use this widget anymore. Creates a new GtkGammaCurve.