c_g_resolver_lookup_service_async

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
void function(GResolver* resolver, const(char)* service, const(char)* protocol, const(char)* domain, GCancellable* cancellable, GAsyncReadyCallback callback, void* userData) c_g_resolver_lookup_service_async;

Meta