Reading ini file, Chinese error?
Your project doesn't use the Unicode Character Set.
Windows headers define GetPrivateProfileString depending upon the character set used:
#ifdef UNICODE
#define GetPrivateProfileString GetPrivateProfileStringW
#else
#define GetPrivateProfileString GetPrivateProfileStringA
#endif // !UNICODE
A Unicode build would use GetPrivateProfileStringW() which would not accept the ANSI string "" as 3rd parameter.
Windows represents non ANSI characters like chinese by wchar_t which holds two bytes and not by char which holds one byte. Non ANSI text files may have different encodings that are capable to represent these characters.
GetPrivateProfileString() only supports the "UTF-16 Little Endian" encoding.
To fix your code, the first thing you have to do is to change your project settings to Unicode. In Visual Studio this is done in Configuration Properties->Advanced->Character Set = "Use Unicode Character Set".
Than you have to make sure that you use wide characters wchar_t instead of char.
CString will automatically use wchar_t if you change to Unicode. But you have to prefix string literals with an L to indicate that it is a wide char string.
// UNICODE version. Works with Ini file with UTF-16 LE encoding.
void readIniW()
{
WCHAR icon_name[MAX_PATH] = L"";
LPCWSTR szTypeName = L"devtree";
LPCWSTR szIconName = L"shidu";
LPCWSTR strIniPath = L"c:\\temp\\myIni.ini";
GetPrivateProfileStringW(szTypeName, szIconName, L"", icon_name, MAX_PATH, strIniPath);
}
Finally make sure that your Ini file really uses "UTF-16 Little Endian" encoding.
See also https://www.codeproject.com/Articles/9071/Using-Unicode-in-INI-files .
"The format above" is the encodig of this web page. So the chinese text displayed here is useless at this point. You need to check with the INI file - i.e. with Notepad++. See below.
Have you tried the code that I provided to read your INI? If it works, you are fine. Otherwise your INI is not encoded in Utf-16 LE. In this case you have no chance to use GetPrivateProfileString() without converting the file. You must either convert the INI to Utf-16 LE or write your own version of GetPrivateProfileString() which is not so hard to do.
There is no general safe way to determine the encoding of a text file.
If you are lucky your INI is encoded in Unicode and starts with the so called "BOM" which indicates the type of Unicode encoding (Utf-8, Utf-16 LE, Utf16-BE, Utf32). In this case you can open and read the file using
FILE *fp = _wfopen(fileName, L"rt, ccs=UNICODE");
if (fp) {
CStdioFile stdIoFile(fp);
CString csLine;
while (stdIoFile.ReadString(csLine))
processLine(csLine);
fclose(fp);
}
Some apps use heuristic methods to determine the encoding. Notepad++ for example does. If you open a textfile with Notepad++ choose [Endcoding] from the menu. It usually displays the detected encoding. For chinese this could be "Big5" or "GB2312". If you know the codepage of the text, you can read the text as ANSI char strings and convert it to wchar_t using MultiByteToWideChar() .
