隐藏/显示WINDOWS系统任务栏/MFC
::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_HIDE); //隐藏WINDOWS系统任务栏
::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_SHOW); //显示WINDOWS系统任务栏
::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_HIDE); //隐藏WINDOWS系统任务栏
::ShowWindow (::FindWindow("Shell_TrayWnd",NULL),SW_SHOW); //显示WINDOWS系统任务栏