Can't capture key event in applet

Hi,
Currently i'm developing an applet. However, i fail to capture the key event in the applet. The key that i fail to capture is VK_TAB. Any idea to handle this?
Thanks in advance!

to capture key event, u need to
1. addKeyListener
2. focus on that component (yourApplet must focusable)

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Capture Key events

I am trying to create a program to capture key events, regardless of where the focus is. For example, any time the user presses ctrl-t, I would like to call a particular method, if the user is in Microsoft Word, Internet Explorer, Halo, or any other application. However, a glass pane would not work, because all other key events will be needed by the current application. This would be identical to Microsoft' s ctrl-alt-del and Microsoft's alt-tab. Any ideas would be greatly appriciated. Post here or E-mail be at [email protected]

This is not true, think of all the keylogger programs out there that allow you to do this.
It's not a security issue.
I also am wondering how to capture a key on a java application without it having focus. An example is a timer in a game. I should be able to be in a full screen game and hit F1 or Home or whatever I choose and have a timer start that will ding at me in 1 minute to let me know that my time is up.
It is in a way similar to CTRL ALT DEL in that you don't ahve to be focused on anything in particular to use it but that isn't really the best analogy.
If anyone can point me in the right direction to figure out how I would go about this, please tell me. Or if it is not possible for a program written in java to capture keypress without focus I would like to know that as well.
You can do this in C and C++ but I would like to just add it in to an existing java program, thanks.

Capture Key Event - Feature Request

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We are using Forms 9.0.4 to build applications to be viewed over our intranet using Jinitiator. I am new to the development team and this is my first time using Forms. I am trying to find a way to capture key press events on a given field (we want to automatically search within a field each time the user enters a letter). I have seen nothing inherent in Forms to do this. There has been lots of metion of a PJC.
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~Rob Lundeen

yesterday in how to find which key the user presses we had a solution :
http://www.oracle.com/technology/sample_code/products/forms/distributions/keyfilter.zip
thx to indusvalley

JPanel can't receive key events

I have a single JPanel added to the content pane of a JFrame.
I want to itercept key events by adding a KeyListener to the JPanel.
If I do it, I don't receive key events.
To solve the problem I identified two ways:
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- invoke setFocusable(true) on the JPanel (available only since 1.4)
I can't use the former because I want to bind the the KeyListener to the JPanel, and I can't use the latter because I don't want to have dependencies on jdk 1.4.
Can anyone suggest a way to solve the problem as simple as calling setFocusable() but available also for older versions of java?

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class KeyListenTest {
     public static void main(String[] args) {
          JPanel panel = new JPanel();
          panel.addKeyListener(new KeyAdapter() {
               public void keyTyped(KeyEvent e) {
                    System.out.println(e);
          JFrame frame = new JFrame();
          frame.getContentPane().add(panel);
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setSize(400,300);
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}The panel must be displayable and visible, so you have to make the call after frame.setVisible(true), however if you don't have any other components that will take the focus away from your panel, this should do it for you. If you want the use to be able to shift focus to your panel, then just add a mouse listener to the panel with a mousePressed(MouseEvent) method that calls the requestFocus() method on the panel.

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Use the CursorMoved event.

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<html>
   <%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
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import java.awt.Rectangle;
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import javax.faces.event.ActionEvent;
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   private Rectangle lincolnRect = new Rectangle(175, 62, 40, 40);
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}

final JList list = new JList(dataModel);
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list.addMouseListener(mouseListener);

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I want to write a screen capture program to capture screen when I am playing fullscreen game or other desktop window application. But the java screen capture program can only receive key or mouse event when it is focused. So how do I capture key event when I am focusing other app or fullscreen app?
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Hi All,
I was wondering if there is a way to capture the top-most
window or dialog box. This is something that will
generally be running outside of the JVM....We,
as programmers, need a Rectangle instance that describes the area
of interest to be captured (i.e., location and size).
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Hi,
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Duplicate thread. Please see the other one at:
<p>capture key and mouse event

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Hi. I'm trying to make a simple game, which recieves input from the arrow keys and spacebar. The drawing is done inside a paintComponent() method in a JPanel. Therefore, the key events should also be handled in the same JPanel. I can call the addKeyListener() method on the JPanel, but it does not recieve key events. I've tried calling setFocusable(true) but it doesn't seem to do anything. If JPanel can't recieve key events (it can recieve mouse events fine), I have to handle the events in the JFrame, which I'm hesitant to do. My book does it in an applet and applets can recieve key events fine, but I want to make an application.
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Thanks,
Mark McKay
http://www.kitfox.com

This works for a JFrame, didn't test it on a JDialog:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class PanelEvents extends JFrame
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          JPanel main = new JPanel();
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                    e.getComponent().requestFocusInWindow();
                    System.out.println(e.getPoint());
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               public void keyTyped(KeyEvent e)
                    System.out.println(e.getKeyChar());
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     public static void main(String[] args)
          JFrame frame = new PanelEvents();
          frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
          frame.pack();
          frame.setLocationRelativeTo( null );
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}

Javafx multiple key events

I have created a program in which a scene have two objects, and each object reacts when certain key is pressed, for example, when 1 is pressed , object 1 prints it's state,a and when 2 is pressed object 2 reports its state, but the program only work for object which is declared first in the scene
following is an illustration
import javafx.scene.input.KeyEvent;
import javafx.scene.Scene;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
* @author Vaibhav
Stage{
    scene: Scene{
        content: [
            Rectangle{
                onKeyPressed: function(ex:KeyEvent):Void{
                    println('first rectangle');
            Rectangle{
                onKeyPressed: function(ex:KeyEvent):Void{
                    println('Second rectangle');
}but it prints only for fist rectangle , is there a workaround

Only the object, which has the focus, can react on key events. Apparently in your case the first object has the focus, therefore the second one does not receive the events. You can set the focus manually with requestFocus().

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In Mac, there is a class NSEvent which handles both keyboard and mouse events, and in ios (iphone/ipad) the counterpart of NSEvent is UIEvent which handles only touch events. I know ios API does not provide this functionality, but how can i handle key events in iphone???

in my application header part of the page is common of all page. header.jsff contains comandmenuItem named "proceduralhelp". if I click proceduralhelp a pop up opens .
in my login page when first time I open popup and press escape popup is not closing.
rest of the cases after login escpe will cose the popup.
only on the loginpage that to for the first time it is not closing when pressing up on escape key. (then we click on close button. and once again open the popup in loginpage now if we press escape it works).
Thanks,
Raghavendra.

Getting key events without a jcomponent...

Is it possible to get key events without adding a keylistener to a jpanel? I want a class of mine to manage input of it's own, but it has no reference to a jpanel. They don't necessarily have to be KeyEvents, but just some way to detect if a key has been pressed (like the arrow keys). How can I do this? Thanks.

Lots of components can listen for key events.
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Key events in a form

Hello!
Maybe I'm missing it, but how can one catch key events on a form?

One way is to create a CustomItem and add this method:
protected void keyPressed(int key) {
System.out.println("Key pressed: "+key);
}This will print the value of the key pressed when the CustomItem is focused.

How to catch key events

Hello!
I have a component which extends JPanel. Now I dynamically add a JTextField as a child to this component. The problem is: when the textfield has focus, how can I get key events in my panel before the textfield gets them (and maybe intercept them so that the textfield doesn't get them at all)?
Background: the component is a self written table and the textfield is an editor. Now I have to make sure that when I am editing and press e.g. "cursor up", that not the textfield will get this key event but the table (which should traverse the current cell then ...)
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Hello,
implement the keyListener interface for the Extended component...
and in Keypressed method
keyPressed(keyEvent){
// do all ur reuirements here
//and comsume the keyEvent...
hope this helps

Can't capture key event in applet

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