public static void gtk_color_chooser_get_rgba(IntPtr chooser, out RGBA color) { if (EtoEnvironment.Platform.IsLinux) { NMLinux.gtk_color_chooser_get_rgba(chooser, out color); } else if (EtoEnvironment.Platform.IsMac) { NMMac.gtk_color_chooser_get_rgba(chooser, out color); } else { NMWindows.gtk_color_chooser_get_rgba(chooser, out color); } }