How to disable or remove Close Button on JFrame

[Bhagya Tangutur]

How to disable or remove Close Button on JFrames???

[VIJAY Yadlapati]

You can't remove close Button from JFrames, but you can disable by calling setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE) on that JFrame.

[Bhagya Tangutur]

Yes...I am already calling that function.My concern is It doen't look like it's disabled.so i wanna change it's icon or i totally wanna remove that close button.because it is just misleads to the user.

[Ken Blair]

Actually you could try this but I really don't think it's what you want, it's going to remove all window decorations (there will be no title bar, etc.) and I'm not even sure if it's supported on all platforms. I don't think it works on pre 1.4 either.

setUndecorated(true);
getRootPane().setWindowDecorationStyle(JRootPane.NONE);

Also look into JWindow which is similar, no titlebar with buttons and what not.
[ August 10, 2003: Message edited by: Ken Blair ]

[Bhagya Tangutur]

Ken,
your right ...it doesn't work prior to jdk1.4.
besides,I want to keep all other buttons,Title(Frame/Window decorations).Thanks for u r sussestion,I came to know something new with your posting.

[Benson Fung]

Hi,

Use JWindow instead of JFrame, the 3 buttons won't appear on JWindow.

Benson

[sean van buggenum]

hi all,

I know this is an old thread now, but i found it while searching for the answer to the problem myself. I post this here as I found this way the best for me, perhaps someone else searching for this finds it useful..

I posted my solution here:

http://forum.java.sun.com/thread.jspa?messageID=10255068

16th of May 2008
3:35 PM

[Campbell Ritchie]

Welcome to JavaRanch, Sean.
Thank you. Actually there are ways to remove the X button from a JFrame, somebody showed us how last year, but I can't remember when.

[Campbell Ritchie]

I ahve found the old thread with details of how to remove the close button: here.

[Pairach Gestongma]

i try

        JFrame controlFrame = new JFrame();
        controlFrame.addWindowListener(new WindowAdapter(){
            @Override
            public void windowDeactivated(WindowEvent e) {
                if(!e.getWindow().isVisible()){
                    e.getWindow().setVisible(true);
                }
            }
        });

her her

[Michael Dunn]

and what are you trying to do?