类似QQ自动停靠，可以伸缩的效果，当放在窗口上后会自动隐藏，鼠标移动会重新显示 -similar QQ automatic berth, telescopic effect when placed on the window will automatically hide, mobile mouse will re-show

可以显示或隐藏前后缀等的编辑框-The edit which can display or hide suffix and prefix

study for hide information in nimage