save contents QTextEdit in a .txt file

[giorgik]

I found an example of this type:

QString nomeFile = QFileDialog::getSaveFileName(this, tr("Salva il File"), "",
                                                    tr("File di Testo (*.txt);;C++ File (*.cpp *.h)"));
    if (nomeFile != "") {
        QFile file(nomeFile);
 
        if (file.open(QIODevice::ReadWrite)) {
   --->   QTextStream stream(&file);   <-----
            stream << ui->editaTesto->toPlainText();
            file.flush();
            file.close();
        }
        else {
            QMessageBox::critical(this, tr("Errore"), tr("Non posso salvare il file"));
            return;
        }
    }

QString nomeFile = QFileDialog::getSaveFileName(this, tr("Salva il File"), "",
                                                    tr("File di Testo (*.txt);;C++ File (*.cpp *.h)"));
    if (nomeFile != "") {
        QFile file(nomeFile);

        if (file.open(QIODevice::ReadWrite)) {
   --->   QTextStream stream(&file);   <-----
            stream << ui->editaTesto->toPlainText();
            file.flush();
            file.close();
        }
        else {
            QMessageBox::critical(this, tr("Errore"), tr("Non posso salvare il file"));
            return;
        }
    }

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When I compile I get this error message referring to the line of code with the arrows:

C:\Qt\progetti\test-MainWindow\notepad.cpp:46: error: variable 'QTextStream stream' has initializer but incomplete type

C:\Qt\progetti\test-MainWindow\notepad.cpp:46: error: variable 'QTextStream stream' has initializer but incomplete type

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How should I write?

Thanks to all

[wysota]

You forgot:

#include <QTextStream>

#include <QTextStream>

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[giorgik]

Thank you very much