SWT的browser如何直接获得焦点

[scottxp]

import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.jface.viewers.*;
public class HelloWorldSwt
{
    public static void main(String[] args) 
    {
        Display display = new Display();
		Shell shell = new Shell(display);
		shell.setLayout(new FillLayout());
		shell.setSize(800, 600);
		Browser browser = new Browser(shell,SWT.NULL);
		browser.setUrl("http://news.163.com/");
		browser.addKeyListener(new KeyListener(){
			@Override
			public void keyPressed(KeyEvent e) {
				System.out.println(e.stateMask+" "+ e.keyCode);
			}
			@Override
			public void keyReleased(KeyEvent e) {
				// TODO Auto-generated method stub	
			}
		});	
                  browser.setFocus();
		shell.open();
		while (!shell.isDisposed()) 
		{
		    if (!display.readAndDispatch()) 
			display.sleep ();
		}
		display.dispose ();
   	 }
}

敲击键盘控制台无显示，使用setfocus（）也没用。必须用鼠标点击一下浏览器才能获取焦点。何解？

[999朵玫瑰]

必须用鼠标点击