Specifies a transaction ID.
- macOS 10.0+
- Mac Catalyst 13.0+
- Core Services
A transaction is a sequence of Apple events that are sent
back and forth between the client and server applications, beginning
with the client’s initial request for a service. When you call
you pass a value of type
transaction parameter. ID Constants for the AECreateAppleEvent Function lists the valid constant values for a variable
or parameter of this type.