public static bool gtk_color_chooser_get_use_alpha(IntPtr chooser) { if (EtoEnvironment.Platform.IsLinux) { return(NMLinux.gtk_color_chooser_get_use_alpha(chooser)); } else if (EtoEnvironment.Platform.IsMac) { return(NMMac.gtk_color_chooser_get_use_alpha(chooser)); } else { return(NMWindows.gtk_color_chooser_get_use_alpha(chooser)); } }