An instance of EntryCallback stores an entry-point which can be called later. In effect it wraps the block of code for an entry-point inside an object which you can store or pass to other objects.
Send the "invoke" message to an EntryCallback instance to execute the method stored inside it.
The maximum message length is 30 characters.
Include this entry in the Class-Control paragraph of any program using this class.
entryCallback is class "entrycll"