WriteConsoleW, wprintf and Unicode

Question

AllocConsole();
consoleHandle = GetStdHandle(STD_OUTPUT_HANDLE);
WriteConsoleW(consoleHandle, L\"qweąęėšų\\n\", 9, NULL, NULL);
_wfreopen(L\"CONOUT$\", L\"w\", stdou         


        

Answer 1

The stdout stream can be redirected and therefore always operates in 8-bit mode. The Unicode string you pass to wprintf() gets converted from utf-16 to the 8-bit code page that's selected for the console. By default that's the olden 437 OEM code page. That's where the buck stops, that code page doesn't support the character.

You'll need to switch to another 8-bit code page, one that does support that character. A good choice is 65001, the code page for utf-8. Fix:

 SetConsoleOutputCP(CP_UTF8);

Or use SetConsoleCP() if you want stdin to use utf-8 as well.