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I have a Unicode problem. The German Letters ä, ü, ö and ß are only visible as a white question mark in a black rhombus. I've made a QAbstractTableModel in Qt5.5.1.

My document is UTF-8 coded. I already tried this, but I still get the same problem.

QVariant bodyPartModel::data(const QModelIndex &index, int role) const
{
    switch (role){
        case Qt::DisplayRole:
            if (col == 0 && row == 0) return tr("ü");    
            if (col == 0 && row == 2) return String::fromUtf8("ä");
    //
}

Does anyone have a clue as to how to display these characters correctly?

edit.: Yes i need a String, i just used one char in this example.

And Thanks to Adriano Repetti, this was the Solution:

QString::fromWCharArray(L"Steißbein")
Rafael Jarosch
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  • Do you need to show a single character? – vahancho Mar 31 '16 at 07:41
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    It's not an UTF-8 string, easy way is `return QString::fromWCharArray(L"ä")`. You _may_ use single `QChar` if you really have a single character (and you won't need to handle e + ' stuff) but I prefer the general form. – Adriano Repetti Mar 31 '16 at 08:07

1 Answers1

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If you need to return a single character, I would suggest doing the following:

QVariant bodyPartModel::data(const QModelIndex &index, int role) const
{
    switch (role){
    case Qt::DisplayRole:
        if (col == 0 && row == 0) return QChar(0x00FC);    
        if (col == 0 && row == 2) return QChar(0x00E4);
[..]
vahancho
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