🚀 go-pugleaf

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Michael J. Rozlog wrote:

> The reason for this code, have you notice if you hit the "x" method at the
> top right hand corner it closes the whole application, even if you have
> exitOnClose set to false on the second frame.  This is most likely a bug!
> To get around this, you can use a wizard to help you with the writing of
> the code.  In the second frame, while in the source, go to the wizard menu
> item and choose the override wizard.  From there, click the "+" symbol on
> the DecoratedFrame and select the processWindowEvent and select "ok".  This
> will put the appropriate code into the program.  Now lets look at the logic
> in the Decorated frame by going to the structure pane and double-clicking
> on the DecoratedFrame object, this of-course takes us to the source for the
> DecoratedFrame now select the blue arrow icon which represents a method for
> the processWindowEvent.  The cursor should be located on the event, it
> should look like this:
> 
>   protected void processWindowEvent(WindowEvent e) {
>     super.processWindowEvent(e);
>     if (e.getID() == WindowEvent.WINDOW_CLOSING && getParent() == null &&
>               exitOnClose)
>       System.exit(0);
>   }
> 
> If you test it out you will come to the conclusion that it should be
> (not)exitOnClose or !exitOnClose.  The code is telling us to close the
> frame regardless of the exitOnClose value.  To un-display a frame you call
> its dispose() method. By the by, when you call dispose() it does not do
> garbage collection on the frame unless it is out of scope.  We modify the
> if statement to check if exitOnClose is not true then just displose(), else
> we call the super method and continue regular processing.
> 

I just use this code with the frame that you want to close:

 protected void processWindowEvent(WindowEvent e)
  {
   if (e.getID() == WindowEvent.WINDOW_CLOSING)
   {
      this.dispose();
   }
  }


The Frames X button and Icon drop down Close both close the form without exiting
the whole applicaton.


I call it on a button click with:

  void button1_actionPerformed(ActionEvent e) {
    Frame2 frame2 = new Frame2();
    frame2.setLocation(400,0);
    frame2.validate();
    frame2.show();
  }
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