该源码完全采用SDK开发，采用高层接口。占用资源少，开发思路清晰，对WINDOWS编程有较好的参考价值。

该源码完全采用SDK开发，采用高层接口。占用资源少，开发思路清晰，对WINDOWS编程有较好的参考价值。- This source code completely uses the SDK development, uses the high level connection. Takes the resources few, the development mentality is clear, has the better reference value to the WINDOWS