ActiveX technology was derived from object linking and embedding (OLE) technology. ActiveX controls were originally called OLE controls. ActiveX controls, commonly called custom controls, are among the most powerful building blocks for creating applications.
This lesson describes ActiveX controls, and explains how they are used in Microsoft Visual Basic, Microsoft Office, and on the Internet.
After completing this lesson, you will be able toEstimated lesson time 40 minutes
- Explain ActiveX controls and how they are implemented in Visual Basic, Office, and on the Internet.
- Describe the advantages of using ActiveX controls.
- Create, test, and implement an ActiveX control.
- Add an ActiveX control to Visual Basic, and to a Web page.
ActiveX controls are reusable objects that include visual elements and code. They are used in some type of container, such as a form or an application, to enable or enhance a user 's interaction with an application. These controls have an .ocx file name extension.
ActiveX controls can be used in many types of applications, such as Microsoft Office, Microsoft Internet Explorer, and Microsoft Visual Basic. An ActiveX control can be contained within a Web page, but ActiveX controls are not limited to the Internet.