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Programming Interfaces
External Program Interfaces : Introduction to External Program Interfaces : COM objects: Automation objects and ActiveX controls : Programming requirements
Programming requirements
For more information on programming COM objects in ABL, see Using COM Objects in ABL. For information specific to Automation objects, see ActiveX Automation Support and for information specific to ActiveX controls, see ActiveX Control Support.
Note: On non-Windows systems, any ABL 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.