nine9hours 0 Newbie Poster

Hi. I am a beginner and i have been facing this problem since Monday. I made a QMainWindow with name window and added an action in it. So when a user clicks the action, the QDialog dialog is displayed. In dialog i take input from user and then return it to window for display. I have set QMainWindow window as parent to QDialog dialog. Now How can i call the function of QMainWindow when OK button is clicked. Here is the code.
Please Please Explain me how to call QMainWindow functions from its child dialog in SIMPLE coding. I will really be thankful to you people.
this is .cpp file of QDialog

#include "itemdialog.h"

#include "ui_itemdialog.h"

#include "mainwindow.h"

ItemDialog::ItemDialog(QWidget *parent) :

QDialog(parent),

ui(new Ui::ItemDialog)

{

ui->setupUi(this);

setWindowTitle("Status Dialog");

}

ItemDialog::~ItemDialog()

{

delete ui;

}

void ItemDialog::on_pushButton_clicked()

{

MainWindow obj;

obj.okbuttonclicked(ui->lineEdit->text());

}


Header file of QDialog
#ifndef ITEMDIALOG_H

#define ITEMDIALOG_H

#include <QDialog>

class MainWindow;

namespace Ui {

class ItemDialog;

}

class ItemDialog : public QDialog

{

Q_OBJECT

public:

explicit ItemDialog(QWidget *parent = 0);

~ItemDialog();

private slots:

void on_pushButton_clicked(); // when OK button is clicked this function is called automatically

private:

Ui::ItemDialog *ui;


};

#endif // ITEMDIALOG_H

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