How to block JTree key event listeners

I have a JToolbar I am managing keyboards events for (e.g. PageUp, PageDown, right, left, up, down). I also have a JTree in another panel. I have to use 'Alt + PageUp' instead of PageUp because, if I use 'PageUp' (without also using the Alt key), and, the JTree gets the focus, then the JTree will respond to 'PageUp' instead of my JToolbar.
I have my key actions in a 'getKeystrokeActions()' method which I pass the JToolbar into so I tried passing the JTree to the same method. This doesn't quite do what I want as both components now respond to a 'PageUp' key event.
There must be some way to tell the JTree not to handle key events but I can't seem to find it. Any help much appreciated.

Remove the key listeners?
JTree tree = new JTree();
for(KeyListener listener : tree.getKeyListeners()) {
tree.removeKeyListener(listener);
}Another option would be to just do
tree.setFocasable(false);

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How to block execution of event listeners

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JDev version : 11.1.1.6
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I could block ActionListeners by disabling command links and command buttons etc.
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I would have if it was just one screen.
There are hundreds of screens.
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Hi all,
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Thanks

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see java.awt.Robot

How I get a key event ???

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public void keyPressed(KeyEvent theEvent)
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Hlep in deleting Componantes using Key event listeners.

Hi All,
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import java.awt.*;
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How to block the workflow event

hi all,
we use the custom BAPI to trigger the workflow.
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please give a suggestion on this...
regards
Sukumar

Hi,
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If i am right in understanding your requirement then you will have to deactivate the linkage to the workflow that sends out the mail in the transaction SWETYPV. Or you will have to comment out the code written for SAP_WAPI_CREATE_EVENT.
Thanks,
Prasath N

IE7: How to block F1 key to show windows help in java applet?

Question
My applet use F1 shotcut key in each popup dialog(JDialog) to show application
help, IE6 works correct, but IE7 shows windows help also besides
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By the way, when applet got the focus, the windows help do not popped up
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In my testing, I found out that this works in IE7:
<body onhelp="return false;">
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<body onhelp="donothing();">
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Tricky Block Key Events in JTable

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How to generate key events to a componet without keyboard

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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)?
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Any help very appreciated.
Michael

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

How to catch key events in JWindow???

Can somebody please suggest me how do I catch key events in a JWindow. I tried without success with addKeyListener( ) method. My sample code is attached below. I've j2sdk1.4.2_03 in my PC.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class EventCatcher extends JWindow implements KeyListener {
     public EventCatcher() {
          super();
          Container c = getContentPane();
          setBounds(100,100,400,400);
          c.setLayout(new FlowLayout());
          JButton button = new JButton("Hello");
          c.add(button);
addKeyListener(this);
requestFocus();
setVisible(true);
     public void keyReleased(KeyEvent ke) {
System.out.println("**************");
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     public void keyTyped(KeyEvent ke) {}
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Regards,
Koushik

Hi GraemeHook!
This is Khurram. I tried your code on my problem that is 95% like this problem but it could not be solved.
can u please take view on my code.
I m trying to move a frame that extends from JWindow on runtime with Key Board Arrow keys. but this only works when I extend this MainApp class from JFrame, but not when from JWindow.
can u please help me. I also posted my own topic but no one response so found it resambling to my problem.
hoping to hear from u soon
you can also tell me at my email address
[email protected]
thanks
===========================================================
MainApp.java
*MainApp.java
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class MainApp extends JWindow {
static LocationManager appLoc = new LocationManager();
public MainApp() {
    try {
      jbInit();
    catch(Exception e) {
      e.printStackTrace();
public static void main(String[] args) {
   MainApp frm = new MainApp();
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int width = screenSize.width;
        int height = 45;
          frm.setFocusableWindowState(true);
        frm.setFocusable(true);
        frm.setSize(width, height);
        frm.setLocation(appLoc.setAppAtBottomCentered(width, height));
        frm.setLocation(appLoc.moveAppUpward(100));
        frm.setVisible(true);
private void jbInit() throws Exception {
    this.getContentPane().setBackground(Color.white);
     addKeyListener(new java.awt.event.KeyAdapter(){
      int moveSpeed = 4;//must be even
      public void keyPressed(KeyEvent e){
        //JOptionPane.showMessageDialog(null,""+e.getKeyCode());
         if(e.getKeyCode() == KeyEvent.VK_SHIFT)
          if(moveSpeed==4)
            moveSpeed = 12;
          else
            moveSpeed = 4;
        if(e.getKeyCode() == KeyEvent.VK_UP)
          setLocation(appLoc.moveAppUpward(moveSpeed));
        else if(e.getKeyCode() == KeyEvent.VK_DOWN)
          setLocation(appLoc.moveAppDownward(moveSpeed));
        else if(e.getKeyCode() == KeyEvent.VK_LEFT)
          setLocation(appLoc.moveAppToLeft(moveSpeed));
        else if(e.getKeyCode() == KeyEvent.VK_RIGHT)
          setLocation(appLoc.moveAppToRight(moveSpeed));
        else if(e.getKeyCode() == 107) {//NUMPAD '+' Key For Vertically Increasing
          setSize(appLoc.increaseSize(0,moveSpeed));
          setLocation(appLoc.updateLocation());
        else if(e.getKeyCode() == 109) {//NUMPAD '-' Key For Vertically Decreasing
          setSize(appLoc.decreaseSize(0,moveSpeed));
          setLocation(appLoc.updateLocation());
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          setSize(appLoc.increaseSize(moveSpeed,0));
          setLocation(appLoc.updateLocation());
        else if(e.getKeyCode() == 45) {// '-' Key For Horizontal Decreasing
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* LocationManager.java
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    import java.util.*;
    import java.sql.*;
public class LocationManager {
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    static Dimension newDim = new Dimension();
    static Dimension minDim = new Dimension();
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      newDim.width = width;
      newDim.height = height;
        int sWidth = screenSize.width;
        int sHeight = screenSize.height;
        newPoint.x = (sWidth-width)/2;
        newPoint.y = (sHeight-height)/2;
        return newPoint;
        //return new Point(this.x, this.y);
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        //Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
      newDim.width = width;
      newDim.height = height;
        int sWidth = screenSize.width;
        int sHeight = screenSize.height;
        newPoint.x = (sWidth-width)/2;
        newPoint.y = 0;
        return newPoint;
        //return new Point(this.x, this.y);
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        //Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
      newDim.width = width;
      newDim.height = height;
        int sWidth = screenSize.width;
        int sHeight = screenSize.height;
        newPoint.x = (sWidth-width)/2;
        newPoint.y = (sHeight-height);
        return newPoint;
        //return new Point(this.x, this.y);
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        //Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
      newDim.width = width;
      newDim.height = height;
        int sWidth = screenSize.width;
        int sHeight = screenSize.height;
        newPoint.x = 0;
        newPoint.y = (sHeight-height)/2;
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        int sHeight = screenSize.height;
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        newPoint.y = (sHeight-height)/2;
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        newPoint.y -= step;
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        //return new Point(this.x, this.y);
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        return newPoint;
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        newPoint.x -= step;
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        //return new Point(this.x, this.y);
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        newPoint.x += step;
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      minDim.height = 56;
      newDim.width += w;
      newDim.height +=h;
      if(w==0 && newDim.height > minDim.height)
        newPoint.y -= h/2;
      else if(newDim.width > minDim.width )
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      return newDim;
    public Dimension decreaseSize(int w, int h){
      minDim.width = 116;
      minDim.height = 56;
      if(newDim.width > minDim.width )
        newDim.width -= w;
      if(newDim.height > minDim.height)
        newDim.height -= h;
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        newPoint.y += h/2;
      else if(newDim.width > minDim.width)
        newPoint.x += w/2;
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    public Point updateLocation(){
      return newPoint;
        //return new Point(this.x, this.y);
}===================================================================

LoadMovie - How to block background events

Hello,
I use loadMovie to load a movie into a current movie clip,
the movie is
currently on the top, but how to block other objects/events
so that only
if this movie is closed, other can interact?
I mean the loaded movie should be `modal`
Thanks.

Not sure if this is what you mean but basically you have a
movie clip on top of other objects that can have mouse interaction
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act's like a click blocker. It will lie between the current
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create movielclip called clickblocker and give it this code:
clickBlocker.onRelease = function () : Void {};
clickBlocker.useHandCursor = false;
so basically it acts like a button that does nothing and
prevents the mouse cursor from turning into a hand.

Blocking system keys

I'm develpoing with NetBens4.1 / Windows CE 3.0 / JeodeJVM 1.2.
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Registry settings would help to...

Found out.
The taskbar get's the ALT+TAB and the CTRL+ESC events, so just disabling it locks these keys. Heres the JNI code:
SysLib.cpp
JNIEXPORT jint JNICALL Java_sys_SysLib_HideTaskBar
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HWND hDeskTopWnd;
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hTaskBarWnd=FindWindow(_T("HHTaskBar"),NULL);
if (hTaskBarWnd)
EnableWindow(hTaskBarWnd,FALSE);
ShowWindow(hTaskBarWnd,SW_HIDE);
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hDeskTopWnd=FindWindow(_T("DesktopExplorerWindow"),NULL);
if (hDeskTopWnd)
SetWindowPos(hDeskTopWnd,NULL,0,0,GetSystemMetrics(SM_CXSCREEN),
GetSystemMetrics(SM_CYSCREEN), SWP_NOACTIVATE | SWP_NOZORDER |
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(JNIEnv *env, jclass obj) {
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HWND hDeskTopWnd;
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hTaskBarWnd=FindWindow(_T("HHTaskBar"),NULL);
if (hTaskBarWnd)
EnableWindow(hTaskBarWnd,TRUE);
ShowWindow(hTaskBarWnd,SW_SHOW );
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rc=-1;
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hDeskTopWnd=FindWindow(_T("DesktopExplorerWindow"),NULL);
if (hDeskTopWnd)
SetWindowPos(hDeskTopWnd,NULL,0,0,GetSystemMetrics(SM_CXSCREEN),
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// Note: 26 is the taskbar height it should be computed.
else
rc=-2;
return rc;
}

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