ShowBrowserBar的第三个参数真的没用?GOOGLE的工具条如何实现的?(IE 工具栏问题)

                            
我用ShowBrowserBar显示工具条,总是停在地址栏右边显示为一小条,而GOOGLE的却是单独的一行显示在地址栏下面(都是第一次使用,也就是注册表中没有工具条位置信息的时候)......MSDN中ShowBrowserBar函数的说明:   
   
  ShowBrowserBar   Method     Internet   Development   Index    
   
  --------------------------------------------------------------------------------  
   
  Shows   or   hides   a   specified   browser   bar.  
   
  Syntax  
   
  object.ShowBrowserBar(   _  
          vClsID   As   Variant,   _  
          [bShow   As   Variant,]   _  
          vSize   As   Variant)  
  Parameters  
   
  vClsID  
  Variant   of   type   String   that   specifies   the   class   identifier   of   the   browser   bar   to   show   or   hide.   This   object   must   be   registered   as   an   Explorer   Bar   object   with   the   CATID_InfoBand   component   category.   For   more   information,   see   Creating   Custom   Explorer   Bars,   Tool   Bands,   and   Desk   Bands.    
  bShow  
  Optional.   Variant   of   type   Boolean   that   specifies   if   the   browser   bar   should   be   shown   or   hidden.    
   
  false  
  Browser   bar   is   hidden.  
  true  
  Browser   bar   is   shown.  
   
  vSize  
  Not   currently   used.    
  Remarks  
   
  The   WebBrowser   object   ignores   this   method.  
   
  A   View   menu   item   in   Microsoft   Internet   Explorer   enables   users   to   show   or   hide   browser   bars,   which   are   also   known   as   Explorer   Bars.  
   
  The   standard   browser   bars   use   the   following   class   identifiers:   Browser   Bar   Name   Class   ID    
  Search   {30D02401-6A81-11D0-8274-00C04FD5AE38}    
  Favorites   {EFA24E61-B078-11D0-89E4-00C04FC9E26E}    
  History   {EFA24E62-B078-11D0-89E4-00C04FC9E26E}    
  Channels   {EFA24E63-B078-11D0-89E4-00C04FC9E26E}      
   
   
  其中的vSize真的没有用吗?那么GOOGLE的工具条如何做到的?

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