Adding an extension to a PowerBuilder target
Copy the PBX file into a directory on the application's path.
In the System Tree, expand the target in which you want to use the extension, right-click a library, and select Import PB Extension from the pop-up menu.
Navigate to the location of the PBX file and click Open.
Each class in the PBX displays in the System Tree so that you can expand it, view its properties, events, and methods, and drag and drop to add them to your scripts.