The event data interface returned as the data parameter of a group collection event callback.Namespace: UCCollaborationLib
Assembly: Microsoft.Office.Uc (in Microsoft.Office.Uc.dll)
This interface is returned in an event callback invoked when the membership of an instance of IGroup is updated. If you are maintaining a contact list, this interface can be used to obtain the new or removed group instead of iterating on the entire group collection provided by IContactManager. The interface identifier (IID) of this interface is ec9773ad-7d22-4b03-b949-5e9055af0f19.