That's a good remark, I kept on using ASCII combined with different codecs, not really knowing what was going wrong.

So is this what I need to do? I would like to check with you guys first, otherwise I need to keep on sending test files to Korea . It works on my system, but no idea what it will be there.

Qt Code:
  1. const char* c_str = ...; //Coming from LabVIEW
  2. QTextCodec* codec = QTextCodec::codecForLocale();
  3. QString converted = codec->toUnicode(c_str, strlen(c_str), 0);
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Also, I was wondering if you need to include any additional files on deployment to have access to all codecs. For example, when I use QTextCodec::codecForName("EUC-KR") in a Qt program, a successful codec is returned. If I do the same in my LabVIEW controlled DLL, 0 is returned.