Printing Unicode to console

Code:

---

#include <iostream>
#include <string>

int main() {
    std::cout << "こんにちは\n";
    std::cin.get();
}

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I'm using Visual Studio. I tried running this program. It's supposed to print some Japanese characters, but all I see is ????. How do I get the characters to display properly?

http://msdn.microsoft.com/en-us/libr...73(VS.85).aspx
Set an appropriate code page perhaps?

In Windows, the only way to get Unicode characters (above 0x007F) to display on the console is to use WriteConsoleW(). Your console's font also needs to contain glyphs for the Unicode characters you're attempting to print.

Code:

---

#define _CRT_SECURE_NO_WARNINGS
#include <windows.h>
#include <iostream>
#include <locale>
#include <mbctype.h>
using namespace std;

#define SOURCE_IN_CP932

// If using VC++, VS 2005 was the first to work with Unicode source code
#if !defined(SOURCE_IN_CP932) && defined(_MSC_VER) && (_MSC_VER < 1400)
#  error "Forget it! Time to upgrade"
#endif

#if defined(SOURCE_IN_CP932) && defined(__GNUC__)
#  error "Stick with UTF8 source with MinGW"
#endif

int main()
{
    wchar_t wmsg[32];
    size_t len;

#ifdef SOURCE_IN_CP932
    const char msg[] = "こんにちは\n"; // save source file in CP 932
    cout << "sizeof(msg) = " << sizeof(msg) << endl;

    // convert CP 932 -> Unicode (UTF16LE on Windows)
    setlocale(LC_CTYPE, ".932");
    len = mbstowcs(wmsg, msg, sizeof(msg)/sizeof(*msg));
#else
    // source already saved as Unicode, just copy the characters
    wcscpy(wmsg, L"こんにちは\n"); // save source file as Unicoode
    len = wcslen(wmsg);
#endif

    if (wmsg[0] != 0x3053)
    {
        cerr << "Bad conversion detected, first character not U+3053" << endl;
#ifdef SOURCE_IN_CP932
        cerr << "Source code must be saved under CP 932." << endl;
#else
        cerr << "Source code must be saved using a Unicode encoding." << endl;
#endif
        return 1;
    }//if

    DWORD written;
    if (!WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE),
                      wmsg, (DWORD)len,
                      &written, 0))
        cerr << "WriteConsole failed, le = " << GetLastError() << endl;

    return 0;
}//main

---

gg

Quote:

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Originally Posted by Codeplug

In Windows, the only way to get Unicode characters (above 0x007F) to display on the console is to use WriteConsoleW().

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No, there are several ways (cf G. G.)...

>> No, there are several ways ...
And yet you fail to provide any other ways...are we to just take your word for it?

gg

>> (above 0x007F)
That part of my statement is erroneous. Any visible characters in the console that didn't go through WriteConsoleW() are "code page characters" (for lack of a better term). Meaning the glyph that was displayed came from a lookup into a code page table.

So if your source code is saved as Shift-JIS (code page 932), you could call SetConsoleOutputCP(932) and WriteConsoleA(msg). But Unicode isn't involved at this point - 'msg' is just a char string with a MBCS of CP 932. (Internally, MS uses the current CP to convert it into Unicode then calls the W version. Most, if not all, of the MS "ANSI" API's work this way.)

gg

Thanks. I still see question marks because my font doesn't support these characters. Do you know of a font that does? I've tried adding several Japanese fonts that Windows came with to the command window as per http://support.microsoft.com/default...b;en-us;247815

However, they don't show up in the font list so I'm assuming they don't meet the criteria or I'm adding them to the registry incorrectly.

Consolas is the only other font I've gotten to work with cmd.exe.

gg