setDefaultCloseOperation在Swing中不起作用

Question

I need to stop the default operation of window being closed when red x mark is clicked on the swing window. I am using the JDialog and adding WindowsListener to it to capture the WindowClosing event, there I decide whether to dispose JDialog or to not dispose it, I am also setting the following:

setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);

But still when I click on the red x mark, the window closes. Any ideas?

Answer 1

将Window侦听器添加到JDialog中使我能够处理窗口动作，并且在我的应用程序中运行良好。

Answer 2

You can try creating a WindowListener and do nothing when the close buttion is clicked.

jdialog.addWindowListener(new WindowAdapter() 
{
  public void windowClosed(WindowEvent e)
  {   
  }

  public void windowClosing(WindowEvent e)
  {
  }

});