The IConnectionPoint interface contains the following methods:
GetConnectionInterface returns the IID of the outgoing interface managed by this connection point.
GetConnectionPointContainer returns the parent (connectable) object's IConnectionPointContainer interface pointer.
Advise creates a connection between a connection point and a client's sink, where the sink implements the outgoing interface supported by this connection point.
Unadvise terminates a notification previously set up with Advise.
EnumConnections returns an object to enumerate the current advisory connections for this connection point.