Progress
External Program
Interfaces
ActiveX Control Support
An ActiveX control (OCX) is a reusable component built on the Microsoft Component Object Model (COM) that allows you to extend the user interface and functionality of a Progress application. Some controls are similar to 4GL widgets, such as combo boxes and radio sets. There are a wide variety of additional user interface controls that are not available as built-in 4GL widgets, such as spin buttons, various dialogs, meters, and picture controls. There are also nongraphical controls for such tasks as communications and time keeping that have no user interface.
This chapter describes the mechanics of working with ActiveX controls in the 4GL. It does not fully explain how to use the Progress AppBuilder to incorporate ActiveX controls in an application. For information on using the AppBuilder to work with ActiveX controls, see the Progress AppBuilder Developer’s Guide . The information in this chapter relies on Progress support for COM objects. For information on COM objects in Progress, see Using COM Objects In the 4GL."
This chapter contains the following sections:
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