宽字节转多字节WcharToChar

BOOL WcharToChar(std::wstring src, std::string& dest)

BOOL WcharToChar(std::wstring src, std::string& dest)
{
    int dwMinSize = WideCharToMultiByte(CP_ACP, NULL, src.c_str(), -1, NULL, 0, NULL, FALSE);
    if (dwMinSize == 0)
    {
        return 0;
    }
    dest.resize(dwMinSize);
    int nlen = WideCharToMultiByte(CP_ACP, NULL, src.c_str(), -1, &dest.at(0), dwMinSize, NULL, FALSE);
    return nlen > 0;
}