keypressed of up arrow no

From:

"Jack" <jack@THRWHITE.remove-dii-this>

Newsgroups:

comp.lang.java.gui

Date:

Wed, 27 Apr 2011 15:41:43 GMT

Message-ID:

<47680183$0$850$ba4acef3@news.orange.fr>

  To: comp.lang.java.gui
Hi,

i have a Swing problem, i don't receive the "keypressed event" for "up arrow" when the Ctrl key is pressed. I have one
computer for which i receive the keyPressed, but another computer the java program doesn't work.

I keep "Ctrl" key pressed, and i type the up arrow key.

On the "working" computer:

keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_UP, modifiers = Ctrl

On the "not working" computer:

keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl
keyPressed keyCode = VK_CONTROL, modifiers = Ctrl

The "up" key is not seen. Do i misuse the Java API, or do you know any bug wich could be the cause of that behavior?

The source code:
======================================
package lc;

import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;

public class ListeClavier {

    public static void main(String[] args) {
        System.out.println("java.version : " + System.getProperty("java.version"));

        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        DefaultListModel model = new DefaultListModel();
        model.addElement("a");
        model.addElement("b");
        model.addElement("c");

        JList list = new JList(model);

        list.addKeyListener(new KeyAdapter() {

            public void keyPressed(KeyEvent e) {
                String key;
                switch (e.getKeyCode()) {
                case KeyEvent.VK_UP: key = "VK_UP"; break;
                case KeyEvent.VK_DOWN: key = "VK_DOWN"; break;
                case KeyEvent.VK_CONTROL: key = "VK_CONTROL"; break;
                default: key = "" + e.getKeyCode();
                }
                System.out.println("keyPressed keyCode = " + key + ", modifiers = " + KeyEvent.getKeyModifiersText(e.getModifiers()));
            }

        });
        JScrollPane scrollPane = new JScrollPane(list);

        frame.setContentPane(scrollPane);
        frame.setVisible(true);

    }

}
=====================================

Thnaks for any help

---
* Synchronet * The Whitehouse BBS --- whitehouse.hulds.com --- check it out free usenet!
--- Synchronet 3.15a-Win32 NewsLink 1.92
Time Warp of the Future BBS - telnet://time.synchro.net:24