Who uses PowerBuilder class definitions

Most business applications do not need to use class definition
information. Code that uses class definition information is written
by groups that write class libraries, application frameworks, and
productivity tools.

Although your application might not include any code that
uses class definition information, tools that you use for design,
documentation, and class libraries will. These tools examine class
definitions for your objects so that they can analyze your application
and provide feedback to you.

Scenarios

Class information might be used when developing:

A custom object browser
A tool that needs to know the objects of an application
and their relationships

The purpose might be to document the application or to provide
a logical way to select and work with the objects.
A CASE tool that deconstructs PowerBuilder objects,
allows the user to redesign them, and reconstructs them

To do the reconstruction, the CASE tool needs both class definition information
and a knowledge of PowerBuilder object source code syntax.
A class library in which objects need to determine
the class associated with an instantiated object, or a script needs
to know the ancestor of an object in order to make assumptions about
available methods and variables

Document get from Powerbuilder help

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Powerbuilder Documentation 12.5

August 9, 2023

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