windows下的控件编程使用滚动条！在程序中使用了滚动条的控件并对其进行设置！-windows under the control programming using the scroll bar! In the procedure used in the scroll bar controls and set!

利用windows消息控制，自定义的滚动条，和QQ2016的滚动条类似-Use windows message control, custom scroll bars, and scroll bars similar QQ2016