visual-c – pcap_findalldevs_ex函数未定义

我甚至按照包含WinPcap库的说明,仍然编译器抱怨pcap_findalldevs_ex未定义

在行if(pcap_findalldevs_ex(source,NULL,& alldevs,errbuf)== -1).

我的代码：

#include "stdafx.h"
#include <stdio.h>
#include "pcap.h"
#include <winsock2.h>
#pragma comment(lib,"ws2_32")

// Function prototypes
void ifprint(pcap_if_t *d);
char *iptos(u_long in);
char* ip6tos(struct sockaddr *sockaddr,char *address,int addrlen);



int _tmain(int argc,_TCHAR* argv[])
{
    pcap_if_t *alldevs;
    pcap_if_t *d;
    char errbuf[PCAP_ERRBUF_SIZE+1];
    char source[PCAP_ERRBUF_SIZE+1];

    printf("Enter the device you want to list:n"
        "rpcap://              ==> lists interfaces in the local machinen"
        "rpcap://hostname:port ==> lists interfaces in a remote machinen"
        "                          (rpcapd daemon must be up and runningn"
        "                           and it must accept 'null' authentication)n"
        "file://foldername     ==> lists all pcap files in the give foldernn"
        "Enter your choice: ");

    fgets(source,PCAP_ERRBUF_SIZE,stdin);
    source[PCAP_ERRBUF_SIZE] = '';

    /* Retrieve the interfaces list */
    if (pcap_findalldevs_ex(source,&alldevs,errbuf) == -1)
    {
        fprintf(stderr,"Error in pcap_findalldevs: %sn",errbuf);
        exit(1);
    }

    /* Scan the list printing every entry */
    for(d=alldevs;d;d=d->next)
    {
        ifprint(d);
    }

    pcap_freealldevs(alldevs);

    return 1;

    return 0;
}

/* Print all the available information on the given interface */
void ifprint(pcap_if_t *d)
{
    //Code removed to reduce length and it contains no errors.
}



/* From tcptraceroute,convert a numeric IP address to a string */
#define IPTOSBUFFERS    12
char *iptos(u_long in)
{
    //Code removed to reduce length
}

char* ip6tos(struct sockaddr *sockaddr,int addrlen)
{
        //Code removed to reduce length
}

有人能指出我正确的方向吗？

编辑：如果我在上面的代码中使用pcap_findalldevs(& alldevs,errbuf),它就会成功构建.所以我想连接到dll没有问题.

编辑1：错误

错误C3861：’pcap_findalldevs_ex’：找不到标识符
IntelliSense：标识符“pcap_findalldevs_ex”未定义

谢谢.