How to Call a QDialog in QMainWindow

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.

Code:

---

#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
}

---

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


Thanks

perhaps you might try to read the docs:
http://doc.qt.nokia.com/4.6/qdialog.html#details

hello ,to go to your new dialog on pushbutton clicked,you should code as below
void MainWindow::on_pushButton_clicked()
{
Dialog a(this);//the name of ur dialog
a.show();//show your dialog
a.exec();
}