public static void main(String[] args){
          final Display d = new Display();
          Shell s = new Shell(d);
          s.setLayout(new GridLayout(2, false));
          s.setSize(500, 500);

          new Label(s, SWT.NONE).setText("C");
          final Button c = new Button(s, SWT.CHECK);

          new Label(s, SWT.NONE).setText("L1");
          final Button b = new Button(s, SWT.PUSH|SWT.FLAT);
          b.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
          b.setText("Button 1");
          b.setEnabled(false);

          new Label(s, SWT.NONE).setText("C2");
          final Button c2 = new Button(s, SWT.CHECK);

          new Label(s, SWT.NONE).setText("L2");
          final Button b2 = new Button(s, SWT.PUSH|SWT.FLAT);
          b2.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
          b2.setImage(null);
          b2.setText("Button 2");
          b2.setEnabled(false);

          new Label(s, SWT.NONE).setText("C3");
          final Button c3 = new Button(s, SWT.CHECK);

          new Label(s, SWT.NONE).setText("L3");
          final Button b3 = new Button(s, SWT.PUSH|SWT.FLAT);
          b3.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
          b3.setText("Button 3");
          b3.setEnabled(false);

          c.addSelectionListener(new SelectionAdapter()
          {
                 @Override
                 public void widgetSelected(SelectionEvent e)
                 {
                       if (!b.isEnabled()) {
                              b.setImage(d.getSystemImage(SWT.ICON_ERROR));
                              b.setEnabled(true);
                       } else {
                              b.setImage(null);
                              b.setEnabled(false);
                       }
                 }
          });

          c2.addSelectionListener(new SelectionAdapter()
          {
                 @Override
                 public void widgetSelected(SelectionEvent e)
                 {
                       if (!b2.isEnabled()) {
                              b2.setImage(d.getSystemImage(SWT.ICON_ERROR));
                              b2.setEnabled(true);
                       } else {
                              b2.setImage(null);
                              b2.setEnabled(false);
                       }
                 }
          });

          c3.addSelectionListener(new SelectionAdapter()
          {
                 @Override
                 public void widgetSelected(SelectionEvent e)
                 {
                       if (!b3.isEnabled()) {
                              b3.setImage(d.getSystemImage(SWT.ICON_ERROR));
                              b3.setEnabled(true);
                       } else {
                              b3.setImage(null);
                              b3.setEnabled(false);
                       }
                 }
          });

          s.open();
          while (!s.isDisposed())
          {
                 if (!d.readAndDispatch())
                       d.sleep();
          }
          d.dispose();
     }