void UIConsoleEventHandler::cleanup()
{
    /* Get console: */
    const CConsole console = m_pSession->session().GetConsole();
    if (console.isNull() || !console.isOk())
        return;
    /* Get event-source: */
    CEventSource eventSource = console.GetEventSource();
    AssertReturnVoid(!eventSource.isNull() || eventSource.isOk());
    /* Unregister listener: */
    eventSource.UnregisterListener(m_mainEventListener);
}
void UIConsoleEventHandler::prepare()
{
    /* Make sure session is passed: */
    AssertPtrReturnVoid(m_pSession);

    /* Create Main-event listener instance: */
    ComObjPtr<UIMainEventListenerImpl> pListener;
    pListener.createObject();
    pListener->init(new UIMainEventListener, this);
    m_mainEventListener = CEventListener(pListener);

    /* Get console: */
    const CConsole console = m_pSession->session().GetConsole();
    AssertReturnVoid(!console.isNull() && console.isOk());
    /* Get event-source: */
    CEventSource eventSource = console.GetEventSource();
    AssertReturnVoid(!eventSource.isNull() && eventSource.isOk());
    /* Register listener for expected event-types: */
    QVector<KVBoxEventType> events;
    events
        << KVBoxEventType_OnMousePointerShapeChanged
        << KVBoxEventType_OnMouseCapabilityChanged
        << KVBoxEventType_OnKeyboardLedsChanged
        << KVBoxEventType_OnStateChanged
        << KVBoxEventType_OnAdditionsStateChanged
        << KVBoxEventType_OnNetworkAdapterChanged
        << KVBoxEventType_OnMediumChanged
        << KVBoxEventType_OnVRDEServerChanged
        << KVBoxEventType_OnVRDEServerInfoChanged
        << KVBoxEventType_OnVideoCaptureChanged
        << KVBoxEventType_OnUSBControllerChanged
        << KVBoxEventType_OnUSBDeviceStateChanged
        << KVBoxEventType_OnSharedFolderChanged
        << KVBoxEventType_OnCPUExecutionCapChanged
        << KVBoxEventType_OnGuestMonitorChanged
        << KVBoxEventType_OnRuntimeError
        << KVBoxEventType_OnCanShowWindow
        << KVBoxEventType_OnShowWindow;
    eventSource.RegisterListener(m_mainEventListener, events, TRUE);


    /* Prepare connections: */
    connect(pListener->getWrapped(), SIGNAL(sigMousePointerShapeChange(bool, bool, QPoint, QSize, QVector<uint8_t>)),
            this, SIGNAL(sigMousePointerShapeChange(bool, bool, QPoint, QSize, QVector<uint8_t>)),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigMouseCapabilityChange(bool, bool, bool, bool)),
            this, SIGNAL(sigMouseCapabilityChange(bool, bool, bool, bool)),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigKeyboardLedsChangeEvent(bool, bool, bool)),
            this, SIGNAL(sigKeyboardLedsChangeEvent(bool, bool, bool)),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigStateChange(KMachineState)),
            this, SIGNAL(sigStateChange(KMachineState)),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigAdditionsChange()),
            this, SIGNAL(sigAdditionsChange()),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigNetworkAdapterChange(CNetworkAdapter)),
            this, SIGNAL(sigNetworkAdapterChange(CNetworkAdapter)),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigMediumChange(CMediumAttachment)),
            this, SIGNAL(sigMediumChange(CMediumAttachment)),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigVRDEChange()),
            this, SIGNAL(sigVRDEChange()),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigVideoCaptureChange()),
            this, SIGNAL(sigVideoCaptureChange()),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigUSBControllerChange()),
            this, SIGNAL(sigUSBControllerChange()),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigUSBDeviceStateChange(CUSBDevice, bool, CVirtualBoxErrorInfo)),
            this, SIGNAL(sigUSBDeviceStateChange(CUSBDevice, bool, CVirtualBoxErrorInfo)),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigSharedFolderChange()),
            this, SIGNAL(sigSharedFolderChange()),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigCPUExecutionCapChange()),
            this, SIGNAL(sigCPUExecutionCapChange()),
            Qt::QueuedConnection);
    connect(pListener->getWrapped(), SIGNAL(sigGuestMonitorChange(KGuestMonitorChangedEventType, ulong, QRect)),
            this, SIGNAL(sigGuestMonitorChange(KGuestMonitorChangedEventType, ulong, QRect)),
            Qt::QueuedConnection);

    connect(pListener->getWrapped(), SIGNAL(sigRuntimeError(bool, QString, QString)),
            this, SIGNAL(sigRuntimeError(bool, QString, QString)),
            Qt::QueuedConnection);

    /* This is a vetoable event, so we have to respond to the event and have to
     * use a direct connection therefor. */
    connect(pListener->getWrapped(), SIGNAL(sigCanShowWindow(bool&, QString&)),
            this, SLOT(sltCanShowWindow(bool&, QString&)),
            Qt::DirectConnection);
    /* This returns a winId, so we have to respond to the event and have to use
     * a direct connection therefor. */
    connect(pListener->getWrapped(), SIGNAL(sigShowWindow(LONG64&)),
            this, SLOT(sltShowWindow(LONG64&)),
            Qt::DirectConnection);
}