小编far*_*ost的帖子

我有下一个文件:

我使用ReadDirectoryChangesW来读取当前文件夹中的更改.我得到了这个文件的路径:L"TESTӠ⬨☐.ipt":

接下来,我想将其转换为utf8并返回:

std::string wstringToUtf8(const std::wstring& source) {
  const int size = WideCharToMultiByte(CP_UTF8, 0, source.data(), static_cast<int>(source.size()), NULL, 0, NULL, NULL);
  std::vector<char> buffer8(size);
  WideCharToMultiByte(CP_UTF8, 0, source.data(), static_cast<int>(source.size()), buffer8.data(), size, NULL, NULL);
}

std::wstring utf8ToWstring(const std::string& source) {
  const int size = MultiByteToWideChar(CP_UTF8, 0, source.data(), static_cast<int>(source.size()), NULL, 0);
  std::vector<wchar_t> buffer16(size);
  MultiByteToWideChar(CP_UTF8, 0, source.data(), static_cast<int>(source.size()), buffer16.data(), size);
}

int main() {
    // Some code with ReadDirectoryChangesW and 
    // ...
    // std::wstring fileName = "L"TEST ????.ipt""
    // ...

    std::string filenameUTF8 = wstringToUtf8(fileName); …