[C#]
    event TSSHOpenSubsystemEvent OnOpenSubsystem;
    delegate void TSSHOpenSubsystemEvent(Object Sender, TElSSHTunnelConnection Connection, string Subsystem);

[VB.NET]
    Event OnOpenSubsystem As TSSHOpenSubsystemEvent
    Delegate Sub TSSHOpenSubsystemEvent(ByVal Sender As Object, ByVal Connection As TElSSHTunnelConnection, ByVal Subsystem As String)

[Pascal]
    under development

[C++]
    void get_OnOpenSubsystem(TSSHOpenSubsystemEvent &pMethodOutResult, void * &pDataOutResult);
    void set_OnOpenSubsystem(TSSHOpenSubsystemEvent pMethodValue, void * pDataValue);
    typedef void (SB_CALLBACK *TSSHOpenSubsystemEvent)(void * _ObjectData, TObjectHandle Sender, TElSSHTunnelConnectionHandle Connection, const char * pcSubsystem, int32_t szSubsystem);

[PHP]
    TSSHOpenSubsystemEvent|callable|NULL get_OnOpenSubsystem()
    void set_OnOpenSubsystem(TSSHOpenSubsystemEvent|callable|NULL $Value)
    callable TSSHOpenSubsystemEvent(TObject $Sender, TElSSHTunnelConnection $Connection, string $Subsystem)

[Java]
    TSSHOpenSubsystemEvent getOnOpenSubsystem();
    void setOnOpenSubsystem(TSSHOpenSubsystemEvent Value);
    TSSHOpenSubsystemEvent.Callback OnOpenSubsystem = new TSSHOpenSubsystemEvent.Callback() {
        public void TSSHOpenSubsystemEventCallback(TObject Sender, TElSSHTunnelConnection Connection, String Subsystem) {
            //...
        }
    }