Window Title Bar

[Raymond Fei]

I am developing an application software. I need get rid of window title bar. The only way I know is to put a window container on the frame to cover the title bar. I wonder if there are some other better way to do it. I wish to be able to create a frame without title bar.
Thanks for any suggestion.

[SAFROLE YUTANI]

You can! Just create an instance of JWindow. The only difference between JFrame and JWindow is that JFrame has a title bar, and JWindow does not.
A JWindow is a container that can be displayed anywhere on the user's desktop. It does not have the title bar, window-management buttons, or other trimmings associated with a JFrame, but it is still a "first-class citizen" of the user's desktop, and can exist anywhere on it.
Splash screens are usually implemented using the likes of JWindow because you dont want a title bar in that case either.
SAF

[Raymond Fei]

Hi! SAFROLE YUTANI,
I really appreciate your reply and I will remember the way you tell me. But I have to use AWT and I can't use any SWING GUI Component in my codes because my code will run in a small embeded CPU. I have to save the resource as much as I can. The Swing take more resource than awt does, which is why I can't use it. Do you know any other way to solve this problem in AWT?
Thanks a lot!
Raymond

[SAFROLE YUTANI]

Of course! Instead of using JWindow, just use java.awt.Window, that's it!
JWindow is a subclass of Window.
SAF

[Raymond Fei]

Hi! SAFROLE YUTANI,
I wrote a simple code for testing your way. But It seemed to me that your way doesn't work very well. I have to use Frame as a top-level window. Java compiler doesn't allow me to use Window as a top-level window. How can I get rid of the title bar on the top of the frame?
Hope somebody can help me sole this problem.
Thanks,
Raymond
/*********Test.java***********/
import java.awt.*;
public class Test extends Frame //Window
{
public Test(){
setSize(300,300);
Panel p = new Panel();
p.add(new Button("Test"), BorderLayout.CENTER);
add(p);
}
public static void main(String args[]){
Test t = new Test();
t.setVisible(true);
}
}

Originally posted by SAFROLE YUTANI:
Of course! Instead of using JWindow, just use java.awt.Window, that's it!
JWindow is a subclass of Window.
SAF

[Ashwin Desai]

Try this out.

import java.awt.*;
public class Test extends Frame
{
Window window;
public Test(){
window = new Window(this);
window.setSize(300,300);
Panel p = new Panel();
p.add(new Button("Test"), BorderLayout.CENTER);
window.add(p);
window.setVisible(true);
}
 
public static void main(String args[]){
Test t = new Test();
}
}

A window needs a parent Frame as its owner. Thus, create a dummy frame and use it as the owner when constructing the window.
Hope this helps.
Ashwin.

[This message has been edited by Ashwin Desai (edited July 16, 2001).]

[Raymond Fei]

Hi! Ashwin,
Thanks for your help. Your code works very well.
Raymond

[parul patidar]

hi Ashwin i tried ur code but it show some strancge behaviour
when i run thatr prog through free java ide it shows a title bar less window but when i return to desktop window disappears
on desktop if i open any other window say my computer and immediately close it, ur window again appears
also when i click process window of free java window does not go back it remain in front until i don't click title bar of free java ide's process window
why all this is happening

[Cindy Glass]

In the 1.4 release the Frame class has a setUndecorated() method to remove the titlebar and border etc. Then you can use the setDefaultLookAndFeelDecorated() to add in your own custome decorations if you want.