QIODevice and QTextCodec?

[whitefurrows]

The encoding for the files is known, but i don't know how can i use the coding to read the file. I need to encode at this place char c = entire[i]; Ther is no problem to use QChar if that mouch more easy to handle! You understand my problem?

[high_flyer]

You understand my problem?

Not really.
Why don't you just do exactly as shown in QTextCodec documentation?
If you know the file encoding, then I still fail to understand your problem, unless your encoding is not supported by QTextCodec.
From the docs:

QByteArray encodedString = "..."; //from the file
 QTextCodec *codec = QTextCodec::codecForName("KOI8-R");
 QString string = codec->toUnicode(encodedString);

QByteArray encodedString = "..."; //from the file
 QTextCodec *codec = QTextCodec::codecForName("KOI8-R");
 QString string = codec->toUnicode(encodedString);

To copy to clipboard, switch view to plain text mode 

[mattc]

You may want to replace the QIODevice with a QTextStream and then use QTextStream::setCodec