说明: 以下函数对于POPUP窗口有效,对于子窗口好像不行. //最小化按钮有效 ::SetWindowLong(m_hWnd,GWL_STYLE,GetWindowLong(m_hWnd,GWL_STYLE) | WS_MINIMIZEBOX ); ::SetWindowPos(m_hWnd,NULL,0,0,0,0,SWP_NOMOVE|SWP_NOSIZE|SWP_FRAMECHANGED); //最小化按钮无效 ::SetWindowLong(m_hWnd,GWL_STYLE,GetWi…