BEGIN_EVENT_MAP
Visual Studio 2010
Begins the definition of your event map.
BEGIN_EVENT_MAP(theClass, baseClass )
In the implementation (.cpp) file that defines the member functions for your class, start the event map with the BEGIN_EVENT_MAP macro, then add macro entries for each of your events, and complete the event map with the END_EVENT_MAP macro.
For more information on event maps and the BEGIN_EVENT_MAP macro, see the article ActiveX Controls: Events.