OleEvent object
The OleEvent object holds information about an event fired by an ActiveX control hosted by in item that was created using the InsertControlItem method.

 NameDescription 
  CountParamRetrieves the count of the OLE event's arguments. 
  IDRetrieves a long expression that specifies the identifier of the event. 
  NameRetrieves the original name of the fired event. 
  ParamRetrieves an OleEventParam object given either the index of the parameter, or its name. 
  ToStringRetrieves information about the event.