OnConnected is a published TNotifyEvent property that represents the event handler signalled to indicate the change in the connection state for the client. 

OnConnected is triggered in the Connect method after allocating and opening the IOHandler for the connection, and signalling the OnStatus event handler. 

Applications must assign a procedure to the event handler to allow responding to the event notification. 

Use OnStatus to handle the informational message that includes the Host name or IP address for the connection.

Connect 

Host 

IOHandler 

OnStatus