launching application in customized widget

[PstdEr]

Hi,
I would like to know is there any way to launch the application in the main window it self, instead of opening a new window.
what are the challenges in doing so, i googled and found out some sample , but its not working.

#include <QtGui/QApplication>
    #include "mainwindow.h"
 
    int main(int argc, char *argv[])
    {
        QApplication a(argc, argv);
        MainWindow w;
 
        w.show();
 
        return a.exec();
    }

#include <QtGui/QApplication>
    #include "mainwindow.h"
     
    int main(int argc, char *argv[])
    {
        QApplication a(argc, argv);
        MainWindow w;
     
        w.show();
     
        return a.exec();
    }

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#include "mainwindow.h"
    #include <QProcess>
 
    MainWindow::MainWindow(QWidget *parent)
        : QMainWindow(parent)
    {
        QProcess * proc = new QProcess(this);
        //proc->start("Artha");// -into"+QString((int)this->winId()));
        proc->start("Artha -into"+QString((int)parent->winId()));
 
    }
 
 
    MainWindow::~MainWindow()
    {
 
    }

#include "mainwindow.h"
    #include <QProcess>
     
    MainWindow::MainWindow(QWidget *parent)
        : QMainWindow(parent)
    {
        QProcess * proc = new QProcess(this);
        //proc->start("Artha");// -into"+QString((int)this->winId()));
        proc->start("Artha -into"+QString((int)parent->winId()));
       
    }
     
     
    MainWindow::~MainWindow()
    {
     
    }

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#ifndef MAINWINDOW_H
    #define MAINWINDOW_H
 
    #include <QtGui/QMainWindow>
 
    class MainWindow : public QMainWindow
    {
        Q_OBJECT
 
    public:
        MainWindow(QWidget *parent = 0);
        ~MainWindow();
    };
 
    #endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
    #define MAINWINDOW_H
     
    #include <QtGui/QMainWindow>
     
    class MainWindow : public QMainWindow
    {
        Q_OBJECT
     
    public:
        MainWindow(QWidget *parent = 0);
        ~MainWindow();
    };
     
    #endif // MAINWINDOW_H

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[anda_skoa]

That can be done but not in a cross-platform way. I.e. this involves native API.

Cheers,
_