Many operating systems and user interfaces provide tools that allow one application to exchange data or use services provided by another application (external program). OpenEdge® allows you to use some of these tools as external program interfaces (EPIs) from within an OpenEdge application.
This is a three-part book that discusses topics pertaining to external program interfaces. The first part of this book describes information you need to know about accessing databases. The second part discusses input and output processes. Finally, the third part of this manual describes the EPIs that OpenEdge supports, and explains how to use them from ABL (Advanced Business Language) to integrate your OpenEdge application with other applications in your operating environment.
