This article discusses a new method to update buffer based on Micerosoft DirectX technology. It not only improves the updating speed but also makes full use of the device, then provides a good performance of real time display of rolling-screen.

• 介绍了基于Microsoft 的DirectX技术的一种有效的更新缓存方法， 不仅提高了更新速度并且使硬件的利用率达到最优，为实时的滚屏显示提供了一个好的解决方案。