Definition of event delegate you should use if you want to receive the OnAddressStateChange event.
[Visual Basic]
Public Delegate Sub OnAddressStateChange( _
ByVal Sender As Object, _
Byval e As OnAddressStateChangeArgs_
)
[C#]
public delegate void OnAddressStateChange(
object Sender,
OnAddressStateChangeArgs e
);
Namespace: TAPIEx
Assembly: TAPIEx.Net.Dll