Re: label setCursor not working when main frame is maximized

"Jeff Higgins" <>
Fri, 16 May 2008 18:34:49 -0400
Chris wrote:

I have a label in a JInternalFrame. The label has a mouseListener on
it, to listen for clicks but also when the mouse is over the label.
When the mouse is over it, I want to change the cursor to a hand
cursor, and back to normal when exiting the label. All this works
when my frame & internal frame are their start up sizes, but if I
maximize the main JFrame and then move the mouse over the label, no
hand! But it's still clickable. For some reason teh setCursor isn't
working. But un-maximize the JFrame & things work again.

In the sample code below, I have 2 classes, the main application frame
that extends JFrame, and MyInternalFrame that extends JInternalFrame.
It's in the internal frame that holds the label & mouseListener.

Any help appreciated!!

import java.awt.BorderLayout;
import java.awt.Cursor;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.*;

public class TestLabelLink extends JFrame {
   JDesktopPane desktop;

   public TestLabelLink() {


       //Set up the GUI.
       desktop = new JDesktopPane(); //a specialized layered pane

       MyInternalFrame frame = new MyInternalFrame();
       frame.setVisible(true); //necessary as of 1.3
       try {
       } catch (java.beans.PropertyVetoException e) {}


       //Make dragging a little faster but perhaps uglier.

   //Quit the application.
   protected void quit() {

    * Create the GUI and show it. For thread safety,
    * this method should be invoked from the
    * event-dispatching thread.
   private static void createAndShowGUI() {
       //Make sure we have nice window decorations.

       //Create and set up the window.
       TestLabelLink frame = new TestLabelLink();

       //Display the window.

   public static void main(String[] args) {
       //Schedule a job for the event-dispatching thread:
       //creating and showing this application's GUI.
       javax.swing.SwingUtilities.invokeLater(new Runnable() {
           public void run() {

class MyInternalFrame extends JInternalFrame {

   JLabel label = new JLabel("<html><body><a href=\"\">click me</a></

   public MyInternalFrame() {

       this.getContentPane().add(label, BorderLayout.NORTH);

       label.addMouseListener(new MouseAdapter() {
           public void mouseClicked(MouseEvent e) {

           public void mouseEntered(MouseEvent e) {
               label.setCursor(new Cursor(Cursor.HAND_CURSOR));

           public void mouseExited(MouseEvent e) {
               label.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

Just a guess. Do the mouseEnter and Mouse Exit events ever fire when
MyInternalFrame is maximised?


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