descKey
AEKeyDesc structure
#include <AppleEvents.h>
typedef struct AEKeyDesc { Size Offset
AEKeyword descKey; 4 0
AEDesc descContent; 8 4
} AEKeyDesc; 12
The Apple Event Manager associates keywords with specific descriptor
records by means of a keyword-specified descriptor record, which is a data
structure of type AEKeyDesc that consists of a keyword and a descriptor
record.
A data structure of type AEKeyDesc consists of a keyword and a descriptor
record. This data structure, called a keyword-specified descriptor record, is
used by the Apple Event Manager to fully identify and describe an attribute
or a parameter of an Apple event. Constants are typically used for keywords.
For a list of these keyword constants, their four-character codes, and the
attributes and parameters they represent see
Apple Event Manager Data.

Notes: The Apple Event keyword descriptor record structure is used
in the following arrays: AEDataArray, AEKeyDescArray.