How to Call a QDialog in QMainWindow

[mcht_z]

Hello, I have a QMainWindow, I want to call a QDialog (its is ready with sorce code, header, and ui file) when push a button.

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
void MainWindow::on_pushButton_clicked()
{
    What I Must Write Here to Open My Dialog
}

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

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

void MainWindow::on_pushButton_clicked()
{
    What I Must Write Here to Open My Dialog
}

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I added dialog.h, dialog.cpp and dialog.ui to my project.


Thanks