CStdioFile ReadString The problem of garbled characters displayed in Unicode environment.

TXT text is a Unicode encoding format, but after ReadString, the characters are garbled. Here is the solution.

CString csetupform::gettxtfile (CString txtdir)//parameter is file path {

CStdioFile file;
if (file. Open (Txtdir,cfile::modenotruncate | Cfile::moderead | Cfile::typetext))
{
CString str;
CString textcontent=_t ("");
while (file. ReadString (str))
{
if (Readstringtounicode (str))//Here to be processed, otherwise the Chinese characters will not display correctly. function See below
textcontent=textcontent+_t ("\ r \ n") +str;
}
File. Close ();
return textcontent;
}
Else
{
Return _t ("");
}

}

This function I refer to others, but the original is problematic. Always show a "hafnium" word coming out. Check it out, the problem is that there is no character Terminator.

BOOL Readstringtounicode (CString &str)
{


char *szbuf = new char[str. GetLength () +1]; Quantity to be added 1


for (int i = 0; i < str. GetLength (); i++)
{
Szbuf[i] = (CHAR) str. GetAt (i);
}  
Szbuf[str. GetLength ()]= ';  //Here, you must add, otherwise, the end of the film will display a "hafnium" word.
//Uses_conversion;
//char * SZ=W2A (str. GetBuffer ());  //I've tried all these methods, I can't.
BOOL bok= chartounicode (szbuf, &STR);
Delete []szbuf;
return bok;
}

The

//This function is referenced by the original. No changes are required
/////////////////////////////////////////////////////////////////////////////////////////
// Converts a char character to a Unicode character
int chartounicode (char *pchin, CString *pstrout)
{
int nlen;
WCHAR *ptch;


if (Pchin = NULL)
{
return 0;
}


Nlen = MultiByteToWideChar (CP_ACP, 0, Pchin,-1, NULL, 0);//Get the desired cache number
Ptch = new wchar[nlen];//Request Cache space
MultiByteToWideChar (CP_ACP, 0, Pchin,-1, Ptch, nlen);//transcoding
Pstrout->format (_t ("%s"), Ptch);
delete [] ptch;


return nlen;
}