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private void StartInBackground()
{
    _phoneListener = new ScreenPopTelephoneListener();

    _phoneListener.Initialize("6000@XXX");

    _phoneListener.StartListening("000");

    _phoneListener.ScreenPop += new _IScreenPopTelephoneListenerEvents_ScreenPopEventHandler(ScreenPopEvent);

    this.Shutdown += new HiPathScreenPop_ShutdownEventHandler(HiPathScreenPop_Shutdown);
}

private void ScreenPopEvent(ScreenPopTelephoneEvent screenpoptelephoneevent)
{
    Console.WriteLine(screenpoptelephoneevent.From);

    Console.WriteLine(screenpoptelephoneevent.Destination);

    Console.WriteLine(screenpoptelephoneevent.QueueName);
}					

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var Listener : ScreenPopTelephoneListener;

...

Listener := CoScreenPopTelephoneListener.Create;

Listener.Initialize('6000@XXX');

Listener.StartListening('000');					

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Listener.ScreenPop := ScreenPopEvent;					

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_phoneListener.ScreenPop += ScreenPopEvent;					

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Listener.ScreenPop := ScreenPopEvent;