Handling MessgeBox in CloseEvent

[ramin.lich]

Hi,
why when i press no button the program will close?

void MainWindow::closeEvent(QCloseEvent *event){
        QMessageBox msg(this);
        msg.setText("Are you sure you want to Quit?");
        QAbstractButton *no=msg.addButton(tr("No"),QMessageBox::ActionRole);
        QAbstractButton *yes=msg.addButton(tr("Yes"),QMessageBox::ActionRole);
        if(msg.clickedButton()==no){
            event->ignore();
        }
        else{
            event->accept();
        }
        msg.exec();
    }

void MainWindow::closeEvent(QCloseEvent *event){
        QMessageBox msg(this);
        msg.setText("Are you sure you want to Quit?");
        QAbstractButton *no=msg.addButton(tr("No"),QMessageBox::ActionRole);
        QAbstractButton *yes=msg.addButton(tr("Yes"),QMessageBox::ActionRole);
        if(msg.clickedButton()==no){
            event->ignore();
        }
        else{
            event->accept();
        }
        msg.exec();
    }

To copy to clipboard, switch view to plain text mode 

thank u

[wysota]

The code you posted makes no sense. With the current code, regardless what you do with the message box, the window will close. Try this:

void MainWindow::closeEvent(QCloseEvent *event) {
  if(QMessageBox::question("Are you sure you want to quit?") != QMessageBox::Yes) event->ignore();
}

void MainWindow::closeEvent(QCloseEvent *event) {
  if(QMessageBox::question("Are you sure you want to quit?") != QMessageBox::Yes) event->ignore();
}

To copy to clipboard, switch view to plain text mode 

[ramin.lich]

thanks but
give me an error....

no matching function for call to 'QMessageBox::question(const char [31])'
^

[wysota]

So lookup the function in the docs and adjust your code to the required signature.