SHGetFolderPathW not working with japanese username - c++

Question

Im trying to create one file in %APPDATA% using SHGetFolderPathW function. This function I guess is getting chars in unicode. I'm working with Visual Studio 2010 little project. The following code work in english version of win 8 but not in japanese version (username is japanese):
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <windows.h>
#include <Shlobj.h>
#include <tchar.h>
#include <string>
int _tmain(int argc, _TCHAR* argv[])
{
std::wstring output = L"";
WCHAR* folder = new WCHAR[2048];
SHGetFolderPathW(NULL, CSIDL_APPDATA,
NULL, SHGFP_TYPE_CURRENT, folder
);
std::wstring str1 = folder;
str1 += L"\\hola.txt";
std::wcout << str1 << std::endl;
std::string str(str1.begin(), str1.end());
std::cout << str << std::endl;
// Create file in folder
FILE * file;
char *path = new char[str.length()+1];
strcpy(path, str.c_str());
file = fopen (path, "w");
fputs ("Hello World",file);
fclose (file);
system("PAUSE");
return 0;
}
The code is showing good path in English version, but in japanese, this path isn't right. I wonder if I have any way to use SHGetFolderPath in all languages. I'm googling two days but not solution found.

Answer 1

If you have a wide string file path, use wide string version of fopen. This should work:
#include <string>
#include <stdio.h>
#include <Shlobj.h>
#include <tchar.h>
int _tmain(int argc, _TCHAR* argv[])
{
WCHAR folder[MAX_PATH];
SHGetFolderPathW(NULL, CSIDL_APPDATA,
NULL, SHGFP_TYPE_CURRENT, folder
);
std::wstring str1 = folder;
str1 += L"\\hola.txt";
// Create file in folder
FILE * file;
file = _wfopen (str1.c_str(), L"w");
fputs ("Hello World",file);
fclose (file);
return 0;
}