How to disable (or hide) the close (x) button on a JFrame?

Question

I have a window (derived from JFrame) and I want to disable the close button during certain operations which are not interruptible. I know I can make the button not do anyt

Answer 1

To simply make them disappear, try the following:

setUndecorated(true);

Answer 2

This will help you:

frame.setDefaultCloseOperation(0);

Answer 3

For those coming to this later than 2008, there has been a change making it possible to do this. See this link

Second response from the bottom shows how to do it by name.

Answer 4

If I understand it correctly, this bug report indicates that this is currently not possible.

Answer 5

Please try this

frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        e.getWindow().setVisible(false);
            try {
                wait();
            } catch (InterruptedException ex) {
                Logger.getLogger(WindowsActions.class.getName()).log(Level.SEVERE, null, ex);
            }
      }
    });

Answer 6

This is probably the best you are going to get:

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

This will remove the entire titlebar, java doesn't really specify a way to remove individual components of the titlebar

edit:

There may be a way, check out these threads:

• link 1
• link 2