干净的客户区

DWORD dwStyle = GetStyle();//获取旧样式  
    DWORD dwNewStyle = WS_OVERLAPPED | WS_VISIBLE| WS_SYSMENU |WS_MINIMIZEBOX|WS_MAXIMIZEBOX|WS_CLIPCHILDREN|WS_CLIPSIBLINGS;  
    dwNewStyle&=dwStyle;//按位与将旧样式去掉  
    SetWindowLong(m_hWnd,GWL_STYLE,dwNewStyle);//设置成新的样式  
    DWORD dwExStyle = GetExStyle();//获取旧扩展样式  
    DWORD dwNewExStyle = WS_EX_LEFT |WS_EX_LTRREADING |WS_EX_RIGHTSCROLLBAR;  
    dwNewExStyle&=dwExStyle;//按位与将旧扩展样式去掉  
    SetWindowLong(m_hWnd,GWL_EXSTYLE,dwNewExStyle);//设置新的扩展样式  
    SetWindowPos(NULL,0,0,0,0,SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|SWP_FRAMECHANGED);//告诉windows：我的样式改变了，窗口位置和大小保持原来不变！

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/hurryboylqs/archive/2010/04/24/5525597.aspx#