hostname to determine its
associated IP address(es), and eventually calls callback, which
must call gResolverLookupByNameFinish to get the result.
See gResolverLookupByName for more details.gResolverLookupByNameAsync(object, hostname, cancellable = NULL, callback, user.data = NULL)objecthostnamecancellableGCancellable, or NULLcallbackuser.datacallback