desktopPanel.setFocusable(false);
// Add the desktop pane that holds the picture that is being edited.
desktopPane = new JDesktopPane();
desktopPane.setBackground(new Color(0x4169AA));
desktopPane.setDesktopManager(new PicEditDesktopManager(desktopPane.getDesktopManager()));
desktopPane.add(activePictureFrame);
desktopPane.setFocusable(false);
desktopPane.setPreferredSize(new Dimension(700, 440));
desktopPane.addMouseWheelListener(new MouseWheelListener() {
public void mouseWheelMoved(MouseWheelEvent event) {