Release 10.1A: OpenEdge Development:
Programming Interfaces

> ## COM object sources

> Any number of Automation objects and ActiveX controls might be available on your Windows system, depending on its configuration and the applications you have installed. In general, you can get information on the available COM objects by using the COM Object Viewer that comes installed with Progress. For more information on this viewer, see Chapter 14, " Using COM Objects in the 4GL."

> ##### Automation objects

> Since Automation objects are generally part of a stand-alone application that functions as an Automation Server, you must have the application installed that provides the Automation objects that you need for your OpenEdge application. For information on the available Automation objects in a particular Automation Server application, see the documentation for that application or use the OpenEdge COM Object Viewer.

> ##### ActiveX controls

> Three ActiveX controls come installed with OpenEdge for Windows. These include a combo box, a spin button, and a timer control. For more information on these controls, see Chapter 16, " ActiveX Control Support."

> Visual Basic Professional provides a starter set of ActiveX controls and includes basic documentation on working with ActiveX controls. Other commercial vendors and countless sources of shareware and freeware offer ActiveX control packages of varying quality.

> Caution: The control vendor is responsible for following COM standards. Any deviation might result in a control that does not work in the OpenEdge environment.

Copyright © 2005 Progress Software Corporation www.progress.com Voice: (781) 280-4000 Fax: (781) 280-4095