On 26 June 2011 15:15, eric wrote: > as you can see , it didn't output to file (tmp\unicode.txt) anything. > but it did output a little thing on screen. Why is that? is that > suppose it should be on your system? Yes, that's because you wrote to std::wcout which is the wide character standard output stream. > looking to see any advancer's help/hint/link and thanks a lot in > advance, Eric What is an advancer? You keep using that word but it's not English.