Marks the beginning of a keyword/descriptor pair for a descriptor in an
- macOS 10.0+
- Core Services
A result code. See Result Codes.
You must follow this call with a sequence of “AEStream” calls to specify exactly one descriptor that goes with the keyword. The descriptor you create can be of type
If you are creating nested descriptors, this routine begins a new keyword/descriptor pair for the descriptor most recently opened by a call to
AEStream. You cannot use this routine to write parameters to any other types of descriptors, even if they are nested inside of an