OleAutomation automation = new OleAutomation(clientSite);
        
        // looks up the ID for method Select.
        int[] methodIDs = automation.getIDsOfNames(new String[]{"PrintPreview"});
        int methodID = methodIDs[0];
        
        Variant result = automation.invoke(methodID);
        automation.dispose();

import java.applet.Applet;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.ole.win32.OleAutomation;
import org.eclipse.swt.ole.win32.Variant;
import org.eclipse.swt.widgets.Button;

public class Snippet157 extends Applet {

  org.eclipse.swt.widgets.Display display;

  org.eclipse.swt.widgets.Shell swtParent;

  java.awt.Canvas awtParent;

  public void init() {
    Thread thread = new Thread(new Runnable() {
      public void run() {
        setLayout(new java.awt.GridLayout(1, 1));
        awtParent = new java.awt.Canvas();
        add(awtParent);
        display = new org.eclipse.swt.widgets.Display();
        swtParent = org.eclipse.swt.awt.SWT_AWT.new_Shell(display,
            awtParent);
        swtParent.setLayout(new org.eclipse.swt.layout.FillLayout());
        org.eclipse.swt.ole.win32.OleFrame frame = new org.eclipse.swt.ole.win32.OleFrame(
            swtParent, org.eclipse.swt.SWT.NONE);
        final org.eclipse.swt.ole.win32.OleClientSite site;
        try {
          site = new org.eclipse.swt.ole.win32.OleClientSite(frame,
              org.eclipse.swt.SWT.NONE, "Word.Document");
          Button b = new Button(swtParent, SWT.PUSH);
          b.setText("Print");
          b.addSelectionListener(new SelectionListener() {
			
			@Override
			public void widgetSelected(SelectionEvent e) {
				OleAutomation automation = new OleAutomation(site);
		          
		          // looks up the ID for method Select.
		          int[] methodIDs = automation.getIDsOfNames(new String[]{"PrintPreview"});
		          int methodID = methodIDs[0];
		          
		          Variant result = automation.invoke(methodID);
		          System.out.println(result != null ? "Successful" : "Failed");
		          System.out.println(result);
		          automation.dispose();	
			}
			
			@Override
			public void widgetDefaultSelected(SelectionEvent e) {
				// TODO Auto-generated method stub
				
			}
		});
          
        } catch (org.eclipse.swt.SWTException e) {
          String str = "Create OleClientSite Error" + e.toString();
          System.out.println(str);
          return;
        }
        setSize(500, 500);
        validate();
        site.doVerb(org.eclipse.swt.ole.win32.OLE.OLEIVERB_SHOW);

        while (swtParent != null && !swtParent.isDisposed()) {
          if (!display.readAndDispatch())
            display.sleep();
        }
      }
    });
    thread.start();
  }

  public void stop() {
    if (display != null && !display.isDisposed()) {
      display.syncExec(new Runnable() {
        public void run() {
          if (swtParent != null && !swtParent.isDisposed())
            swtParent.dispose();
          swtParent = null;
          display.dispose();
          display = null;
        }
      });
      remove(awtParent);
      awtParent = null;
    }
  }
}