How to binding a key press event of "Esc" to "cancle" button

Question

I create a class extended JComponent. Than I add a button named "cancle " to it.
Than I add the class's instance to a JDialog object.
I try to get the key press event through add a keyListener to the class instance, but no works.
I try to add a keymap and action map to the dialog 's getRootPane() also no works.
Who can tell me how can I do?

Answer 1

Thats the way I did it:
    // map escape key
    ActionListener escapeActionListener = new ActionListener()
      public void actionPerformed(ActionEvent e)
        cancelPressed();
    this.registerKeyboardAction( escapeActionListener,
                                 KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0, false),
                                 JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT );