| Interface Summary | 
| AppletListener | This is the interface is for applet listeners, plugins that
 want to know the applet object. | 
| ConfigurationListener | Configuration listener will be notified of configuration events. | 
| EndOfRecordListener | This interface should be used by plugins who would like to be notified
 about the end of record event | 
| FocusStatusListener | This is the interface for a focus status listener. | 
| LocalEchoListener | This interface should be used by plugins who would like to be notified
 about the local echo property. | 
| OnlineStatusListener | This is the interface for a online status listener. | 
| ReturnFocusListener | This interface should be used by plugins who would like to be notified
 about the return of the focus from another plugin. | 
| SocketListener | The socket listener should be implemented by plugins that want to know
 when the whole systems connects or disconnects. | 
| SoundListener | Play a sound when requested. | 
| TelnetCommandListener | This interface should be used by plugins who would like to be notified
 about the end of record event | 
| TerminalTypeListener | This is the interface for a terminal type listener. | 
| WindowSizeListener | This is the interface for a window size listener. |