final MyPanel myPanel = new MyPanel();

        // Use an existing IntViewerDialogDisplayer option type.

        // OptionType has provides "closing options", which specify which actions will close the dialog 

        // (in this case they will be "Ok" and "Cancel").

        IntViewerDialogDisplayer.OptionType optionType = IntViewerDialogDisplayer.OK_APPLY_CANCEL_OPTION;

        // Create an action listener for the dialog. Pass the closing options into the listener.

        MyDialogActionListener myDialogActionListener = new MyDialogActionListener(myPanel,

            optionType.getClosingOptions());

        // Create a dialog descriptor.

        final DialogDescriptor dialogDesc =

             new DialogDescriptor(myPanel, "Dialog Title", false, optionType.getOptions(),

                optionType.getInitialOption(), DialogDescriptor.DEFAULT_ALIGN, null,

                myDialogActionListener);

        // Now pass the DialogDescriptor into the listener.

        myDialogActionListener.setDialogDescriptor(dialogDesc);

        // Display the dialog.

        DialogDisplayer.getDefault().notify(dialogDesc);

    private class MyDialogActionListener implements ActionListener {

        private final MyPanel myPanel;

        private final Object[] defaultClosingOptions;

        private DialogDescriptor dialogDesc;

        public MyDialogActionListener( MyPanel myPanel,

                Object[] defaultClosingOptions) {

            this.myPanel = myPanel;

            this.defaultClosingOptions = defaultClosingOptions;

        }

        public void setDialogDescriptor(DialogDescriptor dd) {

            this.dialogDesc = dd;

        }

        @Override

        public void actionPerformed(ActionEvent e) {

            // Set the dialog to close when the Ok or Cancel button is selected

            dialogDesc.setClosingOptions(defaultClosingOptions);

            // Set up the closing options for an error case

            // We only want the dialog to close when CANCEL is clicked.

            Object[] cancelOnly = new Object[]{DialogDisplayerUtils.CANCEL};

            final String command = e.getActionCommand();

            if (command.equals(DialogDisplayerUtils.OK) || command.equals(DialogDisplayerUtils.APPLY)) {

                try {

                    final Object data = myPanel.getSomeData();

                    doSomething(data);

                }

                catch (Exception ex) {

                    // If there is an error, set the cancel only closing option in the DialogDescriptor.

                    dialogDesc.setClosingOptions(cancelOnly);

                    // Use the INTViewer DialogManager to display an error message.

                    DialogManager.getDefault().showMessageDialog(ex.getMessage(), "Error",

                        DialogManager.ERROR);

                }

            }

        }

    }