- iOS 6.0+
- macOS 10.0+
- tvOS 9.0+
- watchOS 2.0+
There are three types of constant in this document: global variables, errors, and exceptions.
This document describes the constants defined in the Application Kit framework that are not defined in, or are not described in, a document for an individual class.
See AppKit Data Types for descriptions of other constants defined in enumerations.