+ NSDownloadsDirectory = 15, // location of user's Downloads directory (Downloads)
+ NSInputMethodsDirectory = 16, // input methods (Library/Input Methods)
+ NSMoviesDirectory = 17, // location of user's Movies directory (~/Movies)
+ NSMusicDirectory = 18, // location of user's Music directory (~/Music)
+ NSPicturesDirectory = 19, // location of user's Pictures directory (~/Pictures)
+ NSPrinterDescriptionDirectory = 20, // location of system's PPDs directory (Library/Printers/PPDs)
+ NSSharedPublicDirectory = 21, // location of user's Public sharing directory (~/Public)
+ NSPreferencePanesDirectory = 22, // location of the PreferencePanes directory for use with System Preferences (Library/PreferencePanes)