How to pass clicked event from button.qml to main source cpp to pop up a new window ?

Hi everybody :) ,
I'm using QML to design a GUI for my application.
My mainwindow link to mainwindow.qml file. On this mainwindow, i've design button but i don't know how to pass clicked event from this button to main source code cpp to pop up another windows ( I intend to swtich the link of mainwindow.qml to another .qml file )

Can somebody help me ? :(

I'm not good at explaining so I'll just post some code. Marked the lines you should pay attention to with commends. Hope it helps ;)

mainwindow.h

Code:

---

#include <QMainWindow>
#include <QDeclarativeView>
#include <QDeclarativeContext>
#include <QDebug>
 
class MainWindow : public QMainWindow {
    Q_OBJECT
public:
    MainWindow(QWidget *parent = 0) : QMainWindow(parent) {
        view = new QDeclarativeView(this);
        view->rootContext()->setContextProperty("mainwindow",this);    //this
        view->setSource(QUrl("mainwindow.qml"));
        this->setCentralWidget(view);
    }
private:
    QDeclarativeView *view;
public slots:
    void click() {                      //this
            qDebug() << "click";
    }
};

---

mainwindow.qml

Code:

---

import QtQuick 1.0
 
Rectangle {
    width: 100
    height: 62
    color: "red"
 
    MouseArea {
        anchors.fill: parent
        onClicked: mainwindow.click()    //this
    }
}

---

Thanks gouyoku so much, your post is very helpful for me ... sincerely ^^:)

This indeed did the trick for me too but don't forget the Q_OBJECT keyword as I did at first.