[C#]
event TElSFTPServerUnblockEvent OnSFTPUnblock;
delegate void TElSFTPServerUnblockEvent(Object Sender, Object Data, long Offset, long Length, ref int ErrorCode, ref string Comment);
[VB.NET]
Event OnSFTPUnblock As TElSFTPServerUnblockEvent
Delegate Sub TElSFTPServerUnblockEvent(ByVal Sender As Object, ByVal Data As Object, ByVal Offset As Long, ByVal Length As Long, ByRef ErrorCode As Integer, ByRef Comment As String)