Method closeEvent

example/mainwindow.cpp:30–56

/ Protected methods */ /

/* Protected methods */
/*****************************************************************************/
void MainWindow::closeEvent(QCloseEvent *event)
{
    writeSettings();

    if (isModified)
    {
        QMessageBox msgBox;
        msgBox.setText(tr("The file has been modified."));
        msgBox.setInformativeText(tr("Do you want to save your changes?"));
        msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
        msgBox.setDefaultButton(QMessageBox::Save);
        switch (msgBox.exec()) {
            case QMessageBox::Save:
                save();
                event->accept();
                break;
            case QMessageBox::Discard:
                event->accept();
                break;
            default:
                event->ignore();
                break;
        }
    } else {
        event->accept();
    }
}


void MainWindow::dragEnterEvent(QDragEnterEvent *event)