gdk-sharp 0.0.0.0 neutral Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Determines how bit values for the source pixels are combine with the bit values for destination pixels to produce the final result. The sixteen values here correspond to the 16 different possible 2x2 truth tables. Only a couple of these values are usually useful; for colored images, only Copy, Xor and Invert are generally useful. For bitmaps, And and Or are also useful. System.Enum System.IComparable System.IConvertible System.IFormattable Field Gdk.Function Copy Field Gdk.Function Invert Field Gdk.Function Xor Field Gdk.Function Clear Field Gdk.Function And Field Gdk.Function And Reverse Field Gdk.Function And Invert Field Gdk.Function No op Field Gdk.Function Or Field Gdk.Function Equiv Field Gdk.Function Or Reverse Field Gdk.Function Copy Invert Field Gdk.Function Or Invert Field Gdk.Function N And Field Gdk.Function Nor Field Gdk.Function Set Field System.Int32 Internal field. Do not use.