最近一项目中要求显示网络流量,而且必须使用C#。
事实上,调用 IpHlpApi.dll 的 GetIfTable API 可以轻易获得网络信息和网络流量。只是要在C#中实现还是比较复杂。
先看看怎么定义该 API
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本来想把 pIfTable 定义为 IntPtr,但是这样的结果是,获取的信息是错误的(直到现在都不知是什么原因)。
但显然定义为 byte[] 是不能直接使用的。幸好在 Google Code Search 找到了三个类:
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再定义一个 NetInfo 类,存储网络信息
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OK,现在可以获取网络信息了
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PS:事实上,我把获取网络、CPU、内存、磁盘、进程信息等功能封装起来,并做了一个比较完善的 Windows 任务管理器,整理完后发布源码。