protected unsafe void EnableActionGetFeatureList()
        {
            iCallbackGetFeatureList = new CallbackGetFeatureList(DoGetFeatureList);
            IntPtr ptr = GCHandle.ToIntPtr(iGch);

            DvServiceUpnpOrgContentDirectory3EnableActionGetFeatureList(iHandle, iCallbackGetFeatureList, ptr);
        }
 static extern void DvServiceUpnpOrgContentDirectory3EnableActionGetFeatureList(uint aHandle, CallbackGetFeatureList aCallback, IntPtr aPtr);