C / C++ / MFC

CPallini wrote:

hence no need for you.

George_George wrote:

Why no need for me? If I need to change language settings to get the correct value, I have to and should change.

George_George wrote:

For the page you recommended before, there are two terms, SBCS and DBCS. When we map our term multibyte and wide character to them, is multibyte the same as SBCS and wide character the same as DBCS?

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));