vishnu

• Sep 8th, 2005

 

An ActiveX control container supplies an environment in which an ActiveX control can run. Additionally, control containers manipulate, manage, and provide services to all the controls they contain. For example, containers supply controls with event handlers and deal with properties. At a minimum, a container must be able to host an ActiveX control. Additionally, it may support component categories, which are sets of interfaces grouped into areas of functionality and assigned a globally unique identifier (GUID). For example, data binding is a component category. A container may or may not support data binding depending on the needs of its ActiveX control. If a control needs data binding support from a container, the control enters this requirement in the registry. By using the registry information, the container offers for insertion only those controls that it can support.