pango-sharp 2.12.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. TThe bits in a PangoFontMask correspond to fields in a PangoFontDescription that have been set. System.Enum GLib.GType(typeof(Pango.FontMaskGType)) System.Flags Field Pango.FontMask The font family is specified Field Pango.FontMask The font style is specified Field Pango.FontMask The font variant is specified Field Pango.FontMask The font weight is specified Field Pango.FontMask The font stretch is specified Field Pango.FontMask The font size is specified Field Pango.FontMask Gravity is specified.