1  void MainWindow::on_pushButton_clicked()
2  {
3    QString user , pass;
4    user = ui->lineEdit->text();
5    pass = ui->lineEdit_2->text();
6    if(user == "ghomi" && pass == "olomrayaneh")
7       QMessageBox::information(this, "Result is", "You are valid user");
8    else
9        QMessageBox::information(this, "Result is","User name or Password is incorrect");
10 }