public CpContentDirectory_OhNet_Raumfeld(OpenHome.Net.ControlPoint.CpDevice _device)
{
device = _device;
contentDirectory = new OpenHome.Net.ControlPoint.Proxies.CpProxyUpnpOrgContentDirectory1(_device);
contentDirectory.SetPropertyContainerUpdateIDsChanged(ContainerUpdateIDsSink);
contentDirectory.Subscribe();
}