@saman_artorious: program does nothing. I added nothing to code only ui->lineEdit->setFocus(); to mainwindow.cpp and QLineEdit to gui.
@aamer4yu: I added source code. You can see ui->lineEdit->setFocus(); is after ui->setupUi(this);. Actually if I remove that line problem still happens.
mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow
::MainWindow(QWidget *parent
) : ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->lineEdit->setFocus();
}
MainWindow::~MainWindow()
{
delete ui;
}
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->lineEdit->setFocus();
}
MainWindow::~MainWindow()
{
delete ui;
}
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main.cpp
#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *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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mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
{
Q_OBJECT
public:
explicit MainWindow
(QWidget *parent
= 0);
~MainWindow();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
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