RecalcLayout(BOOL bNotify) 
{
    if(m_bInRecalcLayout)
        return;
    m_bInRecalcLayout = true;
    CRect rc1,rc2;
    GetClientRect(rc1);
    rc1.right = rc1.right/2;
    GetClientRect(rc2);    
    rc2.left = rc2.right/2;

    if(::IsWindow(m_wndPanel.m_hWnd))
        m_wndPanel.MoveWindow(&rc1); //继承自CWnd的一个控件

    RepositionBars(0,0xffff,AFX_IDW_PANE_FIRST,reposExtra,CRect(0,0,0,0),&rc2);
    m_bInRecalcLayout = false;
}