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c++qt
Blacktiger800
Blacktiger800

Reputation: 55

C++ Qt QCloseEvent doesn't work

I want to create a message which appears in a new window when the user presses the exit button. Therefor I create a QCloseEvent, but the MainWindow actually doesn't close at all. What am I doing wrong?

Mainwindow.h

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    //Constructor
    explicit MainWindow(QWidget *parent = 0);

    //Destructor
    ~MainWindow();

public slots:
    void closeMainWindow();

private:
    QCloseEvent *event;

MainWindow.cpp

void MainWindow::closeMainWindow(){

    event = new QCloseEvent();
    QMessageBox::StandardButton answer = QMessageBox::question(
                this,
                tr("Close the Window"),
                tr("Do you want to close the window?"),
                QMessageBox::Yes | QMessageBox::No);

    if(answer == QMessageBox::Yes){
        event->accept();
    }
    else
        event->ignore();
}

Upvotes: 3

Views: 1607

Answers (2)

mrusom
mrusom

Reputation: 271

You are missing close() function

if(answer == QMessageBox::Yes)
{
  event->accept();
  close();
}

or override closeEvent() function of MainWindow

Refer below link: Generating a QCloseEvent won't close QMainWindow

Upvotes: 0

abdolahS
abdolahS

Reputation: 683

You must implement closeEvent function of mainwindow!

e.g

void MyMainWindow::closeEvent(QCloseEvent *event)
{
    QMessageBox::StandardButton answer = QMessageBox::question(
                this,
                tr("Close the Window"),
                tr("Do you want to close the window?"),
                QMessageBox::Yes | QMessageBox::No);

    if(answer == QMessageBox::Yes){
        event->accept();
    }
    else
        event->ignore();
}

Upvotes: 4

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