Java Swing Tutorial - Java WindowEvent(Window source, int id) Constructor

Syntax

WindowEvent(Window source, int id) constructor from WindowEvent has the following syntax.

public WindowEvent(Window source,   int id)

Example

In the following code shows how to use WindowEvent.WindowEvent(Window source, int id) constructor.

//from  w  w w  . ja  va 2  s.c o  m
import java.awt.event.WindowEvent;

import javax.swing.JFrame;

public class Main extends JFrame {
  public Main() {

    setDefaultCloseOperation(EXIT_ON_CLOSE);
    enableEvents(java.awt.AWTEvent.WINDOW_EVENT_MASK);
  }

  protected void processWindowEvent(WindowEvent e) {
    WindowEvent newEvent = new WindowEvent(this,WindowEvent.WINDOW_ACTIVATED);
    
    super.processWindowEvent(e); // Pass on the event
  }

  public static void main(String[] a) {
    Main window = new Main();
    window.setBounds(30, 30, 300, 300);
    window.setVisible(true);
  }
}