Problem with KeyEventDispatcher

[timoxa]

Please help ho know,
code example:

KeyboardFocusManager manager = KeyboardFocusManager.getCurrentKeyboardFocusManage r();
manager.addKeyEventDispatcher(this);

public boolean dispatchKeyEvent(KeyEvent keyEvent) {
if (keyEvent.getKeyCode() == KeyEvent.VK_F2) {
JFrame frame = new JFrame();
frame.setVisible(true);
}
return false;
}

code work normal but the frame open twice ???
Where is problem
Thank you!

[JosAH]

If a key is pressed it also is released in the near future; check the KeyEvent type (read the API documentation for that class).

kind regards,

Jos

[timoxa]

Do you know to solve this problem?

[JosAH]

Do you know to solve this problem?

Yes I do: read the API documentation for the KeyEvent class and only act on a KEY_PRESSED or KEY_RELEASED event type.

kind regards,

Jos

[rybread]

Thanks for your help.

If you use the KeyEvent.getID() function you can compare it with KeyEvent.KEY_RELEASED.

I am changing the KeyStroke to be either released or not to my function.

I am using it like this:

        KeyboardFocusManager.getCurrentKeyboardFocusManager()
            .addKeyEventDispatcher(new KeyEventDispatcher() {
                @Override
                public boolean dispatchKeyEvent(KeyEvent e) {
                    if (e.getID() == KeyEvent.KEY_RELEASED){
                        return sendKeyCodeToDisplay(KeyStroke.getKeyStroke(e.getKeyChar(),0,true),e,e.getModifiers(),true);
                    }
                    else{
                        return sendKeyCodeToDisplay(KeyStroke.getKeyStroke(e.getKeyChar(),0,false),e,e.getModifiers(),true);
                    }
                }             
        });