protected unsafe void EnableActionImportResource()
        {
            iCallbackImportResource = new CallbackImportResource(DoImportResource);
            IntPtr ptr = GCHandle.ToIntPtr(iGch);

            DvServiceUpnpOrgContentDirectory3EnableActionImportResource(iHandle, iCallbackImportResource, ptr);
        }
 static extern void DvServiceUpnpOrgContentDirectory3EnableActionImportResource(uint aHandle, CallbackImportResource aCallback, IntPtr aPtr);