vc获得网卡流量信息

[cpp]
//获得网卡流量信息
DWORD dwIfBufSize = 0;
    BOOL bRet;

    if(m_pMIT == NULL)
        m_pMIT = new MIB_IFTABLE[sizeof(MIB_IFTABLE)];

    bRet = ::GetIfTable(m_pMIT,&dwIfBufSize,0);
    if(bRet == ERROR_INSUFFICIENT_BUFFER)//如果内存不足，则重新分配内存大小
    {
        if(dwIfBufSize != NULL)
            delete [] m_pMIT;
        m_pMIT = new MIB_IFTABLE[dwIfBufSize];
    }

    bRet = ::GetIfTable(m_pMIT,&dwIfBufSize,0);
    if (bRet == NO_ERROR)
    {
        if (m_pMIT->dwNumEntries <= 1)
        {
            //bResult = false;
        }
        else
        {
            __int64 i64TotalOutOctets = 0;
            __int64 i64TotalInOctets = 0;
            //多網卡
            for(int i=0; i<(m_pMIT->dwNumEntries); i++)
            {
                if (m_pMIT->table[i].dwType <= 23)
                {
                    //当前上传
                    i64TotalOutOctets += m_pMIT->table[i].dwOutOctets;
                    //当前下载
                    i64TotalInOctets += m_pMIT->table[i].dwInOctets;
                    //bResult = mit.table[i].dwOperStatus;
                    //if (bResult)
                    {
                        //return true;
                    }
                }
            }
            memset(szVal,0,sizeof(szVal));
            if(m_oldUploadOctets != 0 && (i64TotalOutOctets > m_oldUploadOctets))
                m_curUploadOctets = i64TotalOutOctets - m_oldUploadOctets;
            m_oldUploadOctets = i64TotalOutOctets;
            lengthToStr(m_curUploadOctets * 8,szVal);
            m_CapabilityDlgObj.GetDlgItem(IDC_STA_NETUPSPEED)->SetWindowText(szVal);
            //下载
            memset(szVal,0,sizeof(szVal));
            if(m_oldDownloadOctets != 0 && (i64TotalInOctets > m_oldDownloadOctets))
                m_curDownloadOctets = i64TotalInOctets - m_oldDownloadOctets;
            m_oldDownloadOctets = i64TotalInOctets;
            lengthToStr(m_curDownloadOctets * 8,szVal);
            m_CapabilityDlgObj.GetDlgItem(IDC_STA_NETDNSPEED)->SetWindowText(szVal);
        }
    }

还有个wincap 的例子
[cpp]
#include "stdafx.h"
#include <stdlib.h>
#include <stdio.h>

#include "include/pcap.h"

#pragma comment(lib,"lib/Packet.lib")
#pragma comment(lib,"lib/wpcap.lib")

void usage();

void dispatcher_handler(u_char *, const struct pcap_pkthdr *, const u_char *);

void _tmain(int argc, _TCHAR* argv[])
{
pcap_t *fp;
char errbuf[PCAP_ERRBUF_SIZE];
struct timeval st_ts;
u_int netmask;
struct bpf_program fcode;

    /* 检查命令行参数的合法性 */


    /* 打开输出适配器 */
    if((fp= pcap_open_live("\\Device\\NPF_{4C280CAF-B56F-467D-91E2-43F8C54B5BD2}"/*我的网卡名*/,100,1,1000,errbuf))==NULL)
    {
        fprintf(stderr,"\nUnable to open adapter %s.\n", errbuf);
        return;
    }

    /* 不用关心掩码，在这个过滤器中，它不会被使用 */
    netmask=0xffffff;

    // 编译过滤器
    if (pcap_compile(fp, &fcode, "ether proto 0x8864"/*我用的是ADSL这里是设置只接收PPPOE的包*/, 1, netmask) <0 )
    {
        fprintf(stderr,"\nUnable to compile the packet filter. Check the syntax.\n");
        /* 释放设备列表 */
        return;
    }

    //设置过滤器
    if (pcap_setfilter(fp, &fcode)<0)
    {
        fprintf(stderr,"\nError setting the filter.\n");
&

补充：软件开发 , Vc ,