protected unsafe void EnableActionExportResource()
        {
            iCallbackExportResource = new CallbackExportResource(DoExportResource);
            IntPtr ptr = GCHandle.ToIntPtr(iGch);

            DvServiceUpnpOrgContentDirectory3EnableActionExportResource(iHandle, iCallbackExportResource, ptr);
        }
 static extern void DvServiceUpnpOrgContentDirectory3EnableActionExportResource(uint aHandle, CallbackExportResource aCallback, IntPtr aPtr);