AEDesc
Stores data and an accompanying descriptor type to formthe basic building block of all Apple Events.
Declaration
struct AEDescOverview
The Apple Event Manager uses one or more descriptors to constructApple event attributes and parameters, object specifiers, tokens,and many other types of data it works with. (Token is defined in AEDisposeToken(_:).) Adescriptor consists of an opaque data storage container and a descriptortype that identifies the type of the data stored in the descriptor.
The descriptor type is a structure of type DescType,which in turn is of data type ResType—thatis, a four-character code. Descriptor Type Constants lists the constants for the basic descriptortypes used by the Apple Event Manager. For information about descriptortypes used with object specifiers, see Key Form and Descriptor Type Object Specifier Constants.
Version-Notes
Prior to Carbon, the AEDataStorage datatype was defined as follows:
typedef Handle AEDataStorage;