界面的美化，树控件，lisctrl。按钮的三态，滚动条。背景，标题栏的重绘。非常实用欢迎下载 ，独一无二的，原创-Interface landscaping, tree control, lisctrl. Tri-state of the buttons, scroll bars. Background, the redrawing of the title bar. Very practical welcome to download, unique, original