public int ServiceChanged(object varServiceDescriptionID)
{
Trace.WriteLineIf(trace.TraceInfo, "EPG.IGuideDataEvent_ServiceChanged(" + varServiceDescriptionID + ")");
(new GuideDataEventDelegate(this.AsynchroneEventCallback)).BeginInvoke(GuideDataEventType.ServiceChanged, (string)varServiceDescriptionID, null, null);
return 0;
}