[SOLVED] Implementing Exit button in Qt

Implementing Exit button in Qt

I'm trying to implement an exit button, but I'm unable to use connect() method to do this. Actually my button does not emit any signal as far as I know, but I can't find the problem. Here is part of my code that uses connect() method:

#include "MyMainWindow.h"

MyMainWindow::MyMainWindow(QWidget * parent, Qt::WindowFlags flag) :
        QMainWindow(parent, flag)
{
    this->setFixedSize(1120, 630);
    menu = new MyMenu(this);
    this->setCentralWidget(menu);
    this->show();
    // the connect implementation
    connect(menu->exit, SIGNAL(clicked()), this, SLOT(this->exit_button_clicked()));
}

MyMainWindow::~MyMainWindow()
{
}

void MyMainWindow::exit_button_clicked()
{
    this->close();
}

MyMainWindow is a friend class of MyMenu and exit is a private QPushButton. Now I want some help for solving this problem.

Solution

You can use as below directly

connect(menu->exit, SIGNAL(clicked()), this, SLOT(close()));

There is no need to create new method exit_button_clicked() as SLOT