工具条状态的问题?

在应用程序中我创建了三个工具条，我想让它们在应用程序启动的时候排成一行正好在主菜单的下面,我该如何去做?

在VC CDs上有一个例子:

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
//other stuff here...

    EnableDocking(CBRS_ALIGN_ANY);

    DockControlBar(&m_wndToolBar,AFX_IDW_DOCKBAR_TOP);
    DockControlBarLeftOf(&m_wndListToolBar,&m_wndToolBar);

    return 0;
}

void CMainFrame::DockControlBarLeftOf(CToolBar* Bar,CToolBar* LeftOf)
{
    CRect rect;
    DWORD dw;
    UINT n;

    // get MFC to adjust the dimensions of all docked ToolBars
    // so that GetWindowRect will be accurate
    RecalcLayout();
    LeftOf->GetWindowRect(&rect);
    rect.OffsetRect(1,0);
    dw=LeftOf->GetBarStyle();
    n = 0;
    n = (dw & CBRS_ALIGN_TOP) ? AFX_IDW_DOCKBAR_TOP :n;
    n = (dw & CBRS_ALIGN_BOTTOM && n==0) ? AFX_IDW_DOCKBAR_BOTTOM :n;
    n = (dw & CBRS_ALIGN_LEFT && n==0) ? AFX_IDW_DOCKBAR_LEFT :n;
    n = (dw & CBRS_ALIGN_RIGHT && n==0) ? AFX_IDW_DOCKBAR_RIGHT :n;

    // When we take the default parameters on rect, DockControlBar will dock
    // each Toolbar on a seperate line. By calculating a rectangle, we in effect
    // are simulating a Toolbar being dragged to that location and docked.
    DockControlBar(Bar,n,&rect);
}