'Show JInternalFrame Contents While Dragging'

Question

hi,
I have a question I have an application that has internal frames, Basically it is a MDI Application. I am using JDK 1.2.2 and windows 2000. The question is that when you go to the desktop right click properties and in Effects tab you uncheck the 'Show Window Contents While Dragging' checkBox. Now when I run my application and my parent window that is a frame pops up, if I drag the window i.e. my parent frame it doesn't dragg the contents onlt thw windows border is dragged, means it doesn't repaints that is fine. But when I try to drag one of the internal frame it shows me the contents inside the internalFrame being dragged too and I don't want to see these contents while internal frame is being dragged. So how can I make my application not to show the contents inside the JInternalFrames not to be shown while dragging the JInternalFrame. Any help is really appreciated.
for an example I have added a code example to see the effect that I got from the forums just for an example to show. If you have unchecked the option 'Show Window Contents While Dragging' in Effects tab when you go to the desktop right click properties and the Effects Tab or in the controlPanel dblClick Display and go to Effects tab and uncheck this checkBox. Now run this example and see when you drag the main window contents inside it including JInternalFrame doesn't get dragged just the boundry of the dragging frame is shown. Now if you try to drag the JInternalFrame. Contents inside that are dragged too. And I don't want this behavior. I don't want to see the contents.
/*************** MDITest ************/
import javax.swing.*;
* An application that displays a frame that
* contains internal frames in an MDI type
* interface.
* @author Mike Foley
public class MDITest extends Object {
* Application entry point.
* Create the frame, and display it.
* @param args Command line parameter. Not used.
public static void main( String args[] ) {
try {
UIManager.setLookAndFeel(
"com.sun.java.swing.plaf.windows.WindowsLookAndFeel" );
} catch( Exception ex ) {
System.err.println( "Exception: " +
ex.getLocalizedMessage() );
JFrame frame = new MDIFrame( "MDI Test" );
frame.pack();
frame.setVisible( true );
} // main
} // MDITest
/*********** MDIFrame.java ************/
import java.awt.*;
import java.awt.event.*;
import java.io.Serializable;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
* A top-level frame. The frame configures itself
* with a JDesktopPane in its content pane.
* @author Mike Foley
public class MDIFrame extends JFrame implements Serializable {
* The desktop pane in our content pane.
private JDesktopPane desktopPane;
* MDIFrame, null constructor.
public MDIFrame() {
this( null );
* MDIFrame, constructor.
* @param title The title for the frame.
public MDIFrame( String title ) {
super( title );
* Customize the frame for our application.
protected void frameInit() {
// Let the super create the panes.
super.frameInit();
JMenuBar menuBar = createMenu();
setJMenuBar( menuBar );
JToolBar toolBar = createToolBar();
Container content = getContentPane();
content.add( toolBar, BorderLayout.NORTH );
desktopPane = new JDesktopPane();
desktopPane.setPreferredSize( new Dimension( 400, 300 ) );
content.add( desktopPane, BorderLayout.CENTER );
} // frameInit
* Create the menu for the frame.
* <p>
* @return The menu for the frame.
protected JMenuBar createMenu() {
JMenuBar menuBar = new JMenuBar();
JMenu file = new JMenu( "File" );
file.setMnemonic( KeyEvent.VK_F );
JMenuItem item;
file.add( new NewInternalFrameAction() );
// file.add( new ExitAction() );
menuBar.add( file );
return( menuBar );
} // createMenuBar
* Create the toolbar for this frame.
* <p>
* @return The newly created toolbar.
protected JToolBar createToolBar() {
final JToolBar toolBar = new JToolBar();
toolBar.setFloatable( false );
toolBar.add( new NewInternalFrameAction() );
// toolBar.add( new ExitAction() );
return( toolBar );
* Create an internal frame.
* A JLabel is added to its content pane for an example
* of content in the internal frame. However, any
* JComponent may be used for content.
* <p>
* @return The newly created internal frame.
public JInternalFrame createInternalFrame() {
JInternalFrame internalFrame =
new JInternalFrame( "Internal JLabel" );
internalFrame.getContentPane().add(
new JLabel( "Internal Frame Content" ) );
internalFrame.setResizable( true );
internalFrame.setClosable( true );
internalFrame.setIconifiable( true );
internalFrame.setMaximizable( true );
internalFrame.pack();
return( internalFrame );
* An Action that creates a new internal frame and
* adds it to this frame's desktop pane.
public class NewInternalFrameAction extends AbstractAction {
* NewInternalFrameAction, constructor.
* Set the name and icon for this action.
public NewInternalFrameAction() {
super( "New", new ImageIcon( "new.gif" ) );
* Perform the action, create an internal frame and
* add it to the desktop pane.
* <p>
* @param e The event causing us to be called.
public void actionPerformed( ActionEvent e ) {
JInternalFrame internalFrame = createInternalFrame();
desktopPane.add( internalFrame,
JLayeredPane.DEFAULT_LAYER );
} // NewInternalFrameAction
} // MDIFrame
I'll really appreciate for any help.
Thank you

Answer 1

try this:
JDesktopPane desktopPane = new JDesktopPane();
desktopPane.putClientProperty("JDesktopPane.dragMode", "outline");Both parameters passed to 'putClientProperty' must be strings.
Hope this helps
Riz