🚀 go-pugleaf

Hi, I'm not knowing if I post to the correct board, if not, pls forward the question for me.

I have an application that read a text file which contains UTF8 characters.  It can be any language in the text file and the program need not know what language it will be.  The problem that I experienced is that when use TStrings to read a line and display on the ListBox1, some of the characters are encoded correctly, but some characters display in question mark (?).

The following is my code:

TStringList *c = new TStringList;
c->LoadFromFile("b.txt");
TStrings *a = new TStringList;
a->CommaText = c->Strings[0];
AnsiString UTF8Str = a->Strings[0];
WideString ws = UTF8Decode(UTF8Str);
ListBox1->Items->Add(AnsiString(ws));

I have looked at the value of ws when breakpoint, it shows, for example,
\x559C\x7231\x5F71\x7247\x522B
There are 5 characters, the 1,3,4 characters display correct, but the 2,5 characters display (?).

Please give any comment.

Best regards,
grace