A four-character code that uniquely identifies a descriptor in an Apple event record or an Apple event.
SDKs
- macOS 10.0+
- Mac Catalyst 13.0+
Framework
- Core Services
Declaration
typedef FourDiscussion
The Apple Event Manager uniquely identifies the various parts
of an Apple event by means of keywords associated with corresponding
descriptors. Keywords are arbitrary names, stored as four-character
codes of type AEKeyword.
A keyword combined with a descriptor forms a keyword-specified descriptor,
which is defined by a data structure of type AERemote.
The Apple Event Manager also uses keywords for Apple event attributes. Keyword constants used by the Apple Event Manager are defined in Keyword Attribute Constants and Keyword Parameter Constants.