C / C++ / MFC

CPallini wrote:

When you use WideCharacterToMultibyte you must be aware that (of course) not all wide string characters can be mapped to the codepage you're specifying (I'm not an expert, but I think CP_UTF8 gives you have unmapped chars than Czech codepage (1250?)

George_George wrote:

For the same wide character string in Czech, I am not sure whether converting to Czech codepage (1250) or CP_UTF8 will making information lose ... i.e. resulting in ?? (0x3F) character.

Nemanja Trifunovic wrote:

If you don't know for sure the wide string contains only Central Europian characters, you can still safely convert to UTF-8, but not to CP1250.

George_George wrote:

But why not safe with CP1250?

Nemanja Trifunovic wrote:

here is 1-1 mapping between UTF-16 (wide chars on Windows) and UTF-8 (both are simply different encoding forms for Unicode character set).

Nemanja Trifunovic wrote:

On the other hand, there is no 1-1 mapping between Unicode and CP1250.

CPallini wrote:

There is 1-1 mapping for the subset representing Czech characters, I suppose.

George_George wrote:

I need to know the wide character (unicode) and multibyte (UTF-8) values of a character string of czech.

Nemanja Trifunovic wrote:

Anyway, to get a UTF-8 representation of a Unicode string, there is no need to change the system language. Either use WideCharToMultiByte with codepage set to CP_UTF8, or use a third-party library (like the one you see in my signature )

George_George wrote:

1. Change system language settings before invoking WideCharToMultiByte, right?

George_George wrote:

2. Should I use UTF-8 code page or use some Czech code page?

Nemanja Trifunovic wrote:

George_George wrote:
2. Should I use UTF-8 code page or use some Czech code page?


UTF-8

George_George wrote:

This is what you mentioned, and you think using UTF-8 code page to convert wide character to multibyte character is ok.

BOOL GetFileInformationByHandleEx(
  HANDLE hFile,
  FILE_INFO_BY_HANDLE_CLASS cls,
  LPVOID info,
  DWORD bufsize
);
// ...
FILE_NAME_INFO MyStruct = {0};
bool b = GetFileInformationByHandleEx(hFile, FileNameInfo, &MyStruct, sizeof(FILE_NAME_INFO));