Question

The variable filepath which is a string contains the value Música. I have the following code:

wstring fp(filepath.length(), L' ');
copy(filepath.begin(), filepath.end(), fp.begin());

fp then contains the value M?sica. How do I convert filepath to fp without losing the encoding for the ú character?

Answer 1

Use the function MultiByteToWideChar.

Sample code:

std::string toStdString(const std::wstring& s, UINT32 codePage)
{
    unsigned int bufferSize = (unsigned int)s.length()+1;
    char* pBuffer = new char[bufferSize];
    memset(pBuffer, 0, bufferSize);
    WideCharToMultiByte(codePage, 0, s.c_str(), (int)s.length(), pBuffer, bufferSize, NULL, NULL);
    std::string retVal = pBuffer;
    delete[] pBuffer;
    return retVal;
}

std::wstring toStdWString(const std::string& s, UINT32 codePage)
{
    unsigned int bufferSize = (unsigned int)s.length()+1;
    WCHAR* pBuffer = new WCHAR[bufferSize];
    memset(pBuffer, 0, bufferSize*sizeof(WCHAR));
    MultiByteToWideChar(codePage, 0, s.c_str(), (int)s.length(), pBuffer, bufferSize);
    std::wstring retVal = pBuffer;
    delete[] pBuffer;
    return retVal;
}