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Object-oriented Programming
Getting Started with Classes, Interfaces, and Objects
:
Defining classes
:
Defining state in a class
Defining state in a class
Data can exist in the following forms within a class:
Data members of the class
Properties of a class
ABL widgets, streams, and work tables that are referenced by class members
Local variables of a method within the class
In this section:
Data members and properties
Class-scoped handle-based objects
Local variables and other data elements of methods