error: request for member `ok' in `xxx

[JimDaniel]

It sounds like you need to inherit from QDialog and make your own dialog box with a line edit. Then you create a method within your main window called showDialog() or something. You don't want to use show() as QWidget already has a method called show(); Then inside showDialog() you would either create the Dialog object as a non-modal or modal dialog. Does that make sense? I'm not sure I'm explaining it well.

Also, Qt provides a handful of standard pre-built dialogues that you may not be aware of: QFileDialog, QInputDialog, QProgressDialog, QFontDialog, QColorDialog
So inside showDialog() you could do this:

MyGui::showDialog()
{
    QString text = QInputDialog::getText(this, tr("QInputDialog::getText()"),
                                              tr("User name:"), QLineEdit::Normal,
                                              QDir::home().dirName(), &ok);
    //do something with text...
}

MyGui::showDialog()
{
    QString text = QInputDialog::getText(this, tr("QInputDialog::getText()"),
                                              tr("User name:"), QLineEdit::Normal,
                                              QDir::home().dirName(), &ok);
    //do something with text...
}

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I just took that from the documentation example.