CControlBar & CStatusBar

Env: WindowsXP, VC++6.00

In my app, there are some toolbars and an user can show/hide them freely
just as "docktool" sample in [MSDN]does. I make a pop-up Menu to set
show/hide them toolbars as follows,

BOOL CMainFrame::PreTranslateMessage(MSG* pMsg)
{
 if (pMsg->message == WM_RBUTTONDOWN)
 {
  CWnd* pWnd = CWnd::FromHandlePermanent(pMsg->hwnd);
  CControlBar* pBar = DYNAMIC_DOWNCAST(CControlBar, pWnd);

  if (pBar != NULL)
   {
   CMenu Menu;
   CPoint pt;

   pt.x = LOWORD(pMsg->lParam);
   pt.y = HIWORD(pMsg->lParam);
   pBar->ClientToScreen(&pt);

   if (Menu.LoadMenu(IDR_TOOLBAR))
   {
    CMenu* pSubMenu = Menu.GetSubMenu(0);

    if (pSubMenu!=NULL)
    {
     pSubMenu->TrackPopupMenu(TPM_LEFTALIGN |
TPM_RIGHTBUTTON,pt.x,pt.y,this);
    }
   }
  }
 }
 return CFrameWnd::PreTranslateMessage(pMsg);
}

I hope the pop-up Menu will be showed only when I right-click their
toolbars. But when I right-click the statusbar of app, the pop-up Menu also
appears. That is, pBar is not equal to NULL.
So, how can I distinguish between CControlBar and CStatusBar?

TIA
William