Imagem de Background atravez de um JDesktopPane

Descrição

Esconder código-fonte

import javax.swing.*;
 import java.awt.*;
 import java.awt.event.*;
 public class BGDesktopPane extends JFrame
 {
   private static Image img; 
   private JDesktopPane dp1;
   public BGDesktopPane()
   {
       try
        {
            img = javax.imageio.ImageIO.read(new java.net.URL(getClass().getResource("kurumin.jpg"), "kurumin.jpg"));
 
        }
        catch(Exception e){} [/b]
 
     dp1 = new JDesktopPane()
     {
         public void paintComponent(Graphics g)
         {
           super.paintComponent(g);
           [b]if(img != null)
           {
               g.drawImage(img, 0,0,this.getWidth(),this.getHeight(),this);
               g.drawString("Background Carregado com Sucesso!!!", (this.getWidth()/2), (this.getHeight()/2) );
           }
          else
               g.drawString("Image not found", 50,50);
           /* O repaint e o VAlidade aparentimente n fazem diferença. Caso
              encontrem algum bom motivo para usa-los, postem, please! xD
           */
           //super.repaint();
           //super.validate();
         }
 
     };
      addWindowListener(new WindowAdapter()
       {
 
           public void windowOpened(WindowEvent evt)
           {
               formWindowOpened(evt);
           }
        }
      );
 
 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
     getContentPane().add(dp1);
     setSize(img.getWidth(null),img.getHeight(null));
     setVisible(true);
     pack();
   }
    private void formWindowOpened(WindowEvent evt)
     {
         setLocationRelativeTo(null);
         setExtendedState(6);
     }
 
   public static void main(String[] args)
   {
          new BGDesktopPane();
   }
 }