Release 10.1A: OpenEdge Development:
Programming Interfaces

Programming requirements

For more information on programming COM objects in the 4GL, see Chapter 14, " Using COM Objects in the 4GL." For information specific to Automation objects, see Chapter 15, "ActiveX Automation Support," and for information specific to ActiveX controls, see Chapter 16, " ActiveX Control Support."

Note: On non-Windows systems, any 4GL code that references COM objects can compile, but generates run-time errors when executed. Therefore, isolate any COM object references in multi-platform code by using Preprocessor directives.