COM and Related Technologies

ActiveX designers use the following features already defined for COM, Automation, and ActiveX controls:

Feature Technology
Properties Automation, property notifications, property pages, connectable objects
Events Events, Automation, connectable objects
Visual representation Compound documents
Persistence Structured storage (plus extensions)
Design-time layout Compound documents, drag and drop
Container event handlers Events, Automation
Container extended objects ActiveX controls, property pages
Container keyboard ActiveX controls