Method windowClosing

app/src/processing/app/ui/Editor.java:174–176

(WindowEvent e)

    // add listener to handle window close box hit event
    addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
          base.handleClose(Editor.this, false);
        }
      });
    // don't close the window when clicked, the app will take care
    // of that via the handleQuitInternal() methods