File Property Keys Keys that apply to properties of files. TopicsConstantskCFURLFileAllocatedSizeKeykCFURLFileSizeKeykCFURLIsAliasFileKeykCFURLIsMountTriggerKeykCFURLTotalFileAllocatedSizeKeykCFURLTotalFileSizeKey See AlsoFile System ConstantsCommon File System Resource KeysFile Resource TypesiCloud ConstantsVolume Property KeysCFError userInfo Dictionary Keys