Retrieve string codec

[Raccoon29]

Hi all,

simple question: how is it possible to retrieve the codec that a string is using?

I need it to encode the € char to Unicode for a QLineEdit (it appears as a square).
If there is a simpler way, I'm earing

I'm using this code (from docs)

QTextCodec *codec=QTextCodec::codecForName("UTF-8");
lineEdit->setText(codec->toUnicode("€ "));

QTextCodec *codec=QTextCodec::codecForName("UTF-8");
lineEdit->setText(codec->toUnicode("€ "));

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but results in a square.

Thank you in advance