Methods are actions that an object can perform. Three types of members for an object can be exposed: When the member functions are exposed, it makes the object programmable by ActiveX clients. The following figure shows some of the objects in Microsoft Excel.Įach ActiveX object has its own unique member functions. Within Microsoft Excel, objects are organized hierarchically, with an object named Application at the top of the hierarchy. For example, Microsoft Excel exposes many objects that you can use to create new applications and programming tools. An ActiveX component is an application or library that is capable of creating one or more ActiveX objects. An ActiveX object is an instance of a class that exposes properties, methods, and events to ActiveX clients.