[SOLVED]Closing Newwindow.

[JasonB]

Hi Guys,

i have created a Main window . On main window i have a pushbutton, by click event on pushbutton1 a new window will open. I am trying to add a Close Button in form of (pushbutton2)on Newwindow. But it is not functioning. Basically i would like to add a Pushbutton2 on Newwindow , So by Click event on Pushbutton2 Newwindow should close.

Thanks.

[joeQ]

you should connect the signal and slot.eg:
connect(btn2,SIGNAL(clicked(bool)),this,SLOT(close()));
all the code is:

main.cpp

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

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

private slots:
    void on_pushButton_clicked();//btn1 click slot

private:
    Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "mywindow.h"
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_pushButton_clicked()
{
   MyWindow *newwindow = new MyWindow(this);//create a new window
   newwindow->setWindowTitle("new window");
   newwindow->show();
}

mywindow.h

#ifndef MYWINDOW_H
#define MYWINDOW_H

#include <QMainWindow>
#include <QPushButton>
class MyWindow : public QMainWindow
{
    Q_OBJECT
public:
    explicit MyWindow(QWidget *parent = 0);

signals:

public slots:

private:
    QPushButton *btn2;//one btn on newwindow
};

#endif // MYWINDOW_H

mywindow.cpp

#include "mywindow.h"

MyWindow::MyWindow(QWidget *parent) : QMainWindow(parent)
{
    btn2 = new QPushButton(this);
    btn2->setText("btn2");
    connect(btn2,SIGNAL(clicked(bool)),this,SLOT(close()));//connect btn2's signal an slot
}

[JasonB]

@joeQ Thanks man.