How can I change a decorated JFrame to non-decorated JFrame?

I want to change a decorated JFrame to a non-decorated JFame. The frame already shown on the screen. How can I do this?

If I call dispose() and setVisible(), the window ID will be changed. I am working on Linux and need to communicate with other processes by window ID. Is there a method to set a frame decorate without change window ID?

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Hi ..
Help here > Why can’t I select None when I edit my payment information?HHi

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How can I change the Jframe Java help Icon

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I am using then HelpSet class and HelpBroker.
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Any Idea? thanks. ...

It can be done, but it's ugly...
Add in a listener to your topmost JFrame to sense when the focus is lost, since this happens when a help window comes up. When the focus leaves the main window, check all the windows that are up to see if one is a help window. If so, this will give you a reference to the help window and you can drill down to change what you want.
Here's an example that changes the icon and removes the borders from the javahelp buttons.
WindowListener wndCloser = new WindowAdapter() {
          //A necessarily roundabout method to affect
          //look and feel aspects of the javahelp viewer.
          //(there is no way to get at these components directly.)
          //When the main frame loses focus, it may be because
          //the help viewer was brought up. Look through all
          //the current frames to see if one is a help viewer.
          //If it is, change the look of the help viewer
          //to what we want.
          Frame m_helpFrame = null;
          public void windowDeactivated(WindowEvent e) {
          if (m_helpFrame != null)
               return;
          Frame[] frames = getFrames();
          for (int k = 0; k < frames.length; k++) {
               if (!(frames[k] instanceof JFrame))
               continue;
               JFrame jf = (JFrame)frames[k];
               if (jf.getContentPane().getComponentCount()==0)
               continue;
               Component c = jf.getContentPane().
               getComponent(0);
               if (c == null || !(c instanceof JHelp))
               continue;
               m_helpFrame = jf;
               //now that we know the Frame, we can change the title icon
               final Image image2 = <your icon here>
               m_helpFrame.setIconImage(image2);
               JHelp jh = (JHelp)c;
               for (int s=0; s<jh.getComponentCount(); s++) {
               c = jh.getComponent(s);
               if (c == null || !(c instanceof JToolBar))
                    continue;
               JToolBar jtb = (JToolBar)c;
               //now that we've accessed the toolbar, we can
               //modify the look of the buttons.
               for(int i=0; i<jtb.getComponentCount(); i++) {
                    Component comp = jtb.getComponentAtIndex(i);
                    if(comp instanceof JButton) {
                    JButton button = (JButton)comp;
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How can I change the Icon on the JFrame?

Everytime, when I create an application, the default javalogo will show on the left top concern of the application which using JFrame, how can I change it to the other?

Have you tried using the setIconImage method like this:
JFrame F=new JFrame();
F.setIconImage(Toolkit.getDefaultToolkit().getImage("myIcon.gif"));
Here is what the API doc says:
setIconImage
public void setIconImage(Image image)
Sets the image to be displayed in the minimized icon for this frame. Not all platforms support the concept of minimizing a window.
Parameters:
image - the icon image to be displayed. If this parameter is null then the icon image is set to the default image, which may vary with platform.

How can i change the particular node color in Jtree?

I have constructed the tree.i dont know how to set the color for the particular node then how can i change the particular node icon depends on some conditions like if we will give the input whether it is available in jtree that node icon only changed.Anyone please help me as soon as possible.

hi,
i saw that tutorial.from that book i dont get the particular node cell renderer.i got a cell renderer for tree only.i attached my code in this mail.pls see and help me if u will do
mport pack.Prop;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Font;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Properties;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.text.Position;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.MutableTreeNode;
import javax.swing.tree.TreeCellRenderer;
import javax.swing.tree.TreePath;
public class ReadProperty3 extends JFrame{
String str,key;
static JTree tree;
static Vector v;
StringTokenizer st;
static DefaultMutableTreeNode root;
DefaultMutableTreeNode t;
public Object[] o;
public static void main(String[] args) throws IOException {
ReadProperty3 r = new ReadProperty3();
Prop p=new Prop();
JFrame f=new JFrame();
p.show();
Object[] o=v.toArray();
int startRow = 0;
String prefix =p.s;
TreePath path = tree.getNextMatch(prefix, startRow, Position.Bias.Forward);
//if(prefix.equals(root.getChildAt(0).toString()))
if(prefix.equals("2000"))
     System.out.println("Node 2000 found");
     else if(prefix.equals("3000"))
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     else if(prefix.equals("4000"))
          System.out.println("Node 4000 found");
     else
          System.out.println("Node not found");
     for(int i=0;i<v.size();i++)
          //((DefaultTreeModel)tree.getModel()).reload();
          DefaultTreeCellRenderer ren=(DefaultTreeCellRenderer)tree.getCellRenderer();
          Icon openIcon = new ImageIcon("C:/apache-tomcat-5.5.12/webapps/jsp-examples/images/execute.gif");
          Icon closedIcon = new ImageIcon("C:/apache-tomcat-5.5.12/webapps/jsp-examples/images/execute.gif");
          Icon leafIcon = new ImageIcon("C:/apache-tomcat-5.5.12/webapps/jsp-examples/images/read.gif");
          if(o[0].equals(p.s))
               ren.setBackgroundSelectionColor(Color.MAGENTA);
               ren.setBackgroundNonSelectionColor(Color.YELLOW);
               //ren.setTextSelectionColor(Color.YELLOW);
               //ren.setTextNonSelectionColor(Color.BLUE);
               ren.setClosedIcon(closedIcon);
               ren.setFont(new Font("Impact",Font.ITALIC,14));
          else if(o[1].equals(p.s))
               ren.setLeafIcon(leafIcon);
               ren.setFont(new Font("Impact",Font.ITALIC,10));
               UIManager.put("Tree.leafIcon", leafIcon);
          else if(o[2].equals(p.s))
               ren.setOpenIcon(openIcon);
               ren.setFont(new Font("Dialog",Font.BOLD,9));
public ReadProperty3(){
     super("JTree With Properties");
     try{
int c = 0;
while(c == 0){
c = 1;
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter file name which has properties extension :");
str = bf.readLine();
File f = new File(str + ".properties");
if(f.exists()){
Properties pro = new Properties();
FileInputStream in = new FileInputStream(f);
pro.load(in);
System.out.println("Key: " + pro.keySet());
System.out.print("Enter Key : ");
key = bf.readLine();
String p = pro.getProperty(key);
st = new StringTokenizer(p,"=,");
root=new DefaultMutableTreeNode(key);
v=new Vector();
while(st.hasMoreTokens())
     String val=st.nextToken();
     v.add(val);
     o=v.toArray();
     System.out.println(val);
     t=new DefaultMutableTreeNode(val);
     root.add(t);
     tree=new JTree(root);
     tree.setEditable(true);
     JScrollPane jp=new JScrollPane(tree);
     // tree.setCellRenderer(new CellRenderer());
     Container content=getContentPane();
     content.add(jp,BorderLayout.CENTER);
setSize(250,275);
setVisible(true);
addWindowListener(new ExitListener());
else{
c = 0;
System.out.println("File not found!");
catch(IOException e){
System.out.println(e.getMessage());
}

How can I change the palette of a BufferedImage

How can I change the palette of a BufferedImage ?
My image uses an IndexColorModel but I want to use a web safe palette.
I can't see a way to make a setColorModel() to my image.
Any ideas ?
Thanks...

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import java.net.*;
import javax.imageio.*;
import javax.swing.*;
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        this.copy = copy;
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                repaint();
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        g2.setClip(oldClip);
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        int h = original.getHeight();
        IndexColorModel icm = createICM();
        BufferedImage copy = new BufferedImage(w, h, BufferedImage.TYPE_BYTE_INDEXED, icm);
        Graphics2D g = copy.createGraphics();
        g.drawRenderedImage(original, null);
        g.dispose();
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        byte MAX = (byte) 255;
        byte[] r = {MAX, MAX, MAX, MAX, 0, 0, 0, 0};
        byte[] g = {MAX, MAX, 0, 0, MAX, MAX, 0, 0};
        byte[] b = {MAX, 0, MAX, 0, MAX, 0, MAX, 0};
        return new IndexColorModel(3, 8, r, g, b);
}

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import java.awt.*;
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How can I change a decorated JFrame to non-decorated JFrame?

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