获取网卡地址

如何获取网卡地址(MAC地址)：

VC++编写的代码，适用于windows环境，API实现

/*char *pMACAdr,返回网卡地址的buff,

 int *nBuffLen前一个参数的长度,

 int nAdapterID = 0网卡号,针对多网卡问题,有的机器不止一个网卡,默认为0

*/

#include <NB30.H>
#pragma comment(lib, "C:\Program Files\Microsoft Visual Studio\VC98\Lib\Netapi32.lib")//自己找安装目录

BOOL GetMACAdress(char *pMACAdr, int *nBuffLen, int nAdapterID = 0)
{
 if (NULL == pMACAdr || *nBuffLen <= 0 || nAdapterID < 0) {
  *nBuffLen = 0;
  return FALSE;
 }
 memset(pMACAdr, 0, *nBuffLen);

 typedef struct _ASTAT_   
 {   
  ADAPTER_STATUS   adapt;   
  NAME_BUFFER      NameBuff   [30];   
 }ASTAT, *PASTAT; 

 NCB  ncb;   
 UCHAR   uRetCode;   
 ASTAT   Adapter; 
 
 memset(&ncb, 0, sizeof(ncb));   
 ncb.ncb_command  = NCBRESET;   
 //网卡序号，一般从0开始
 ncb.ncb_lana_num = nAdapterID;  
 
 //send one NCBRESET command to the adapter car, for initialzing
 uRetCode = Netbios(&ncb);      
 memset(&ncb, 0, sizeof(ncb));   
 ncb.ncb_command  = NCBASTAT;   
 ncb.ncb_lana_num = nAdapterID;//specify the adapter car ID  
    
 strcpy((char*)ncb.ncb_callname, "* ");   
 ncb.ncb_buffer = (PUCHAR)&Adapter;       
 ncb.ncb_length = sizeof(Adapter);   
    
 //send the NCBRESET command to get the adapter car msg  
 uRetCode = Netbios(&ncb); 
 CString szMacAdr;  
 if(0 == uRetCode) {   //获得网卡信息成功
  szMacAdr.Format("%02X%02X-%02X%02X-%02X%02X",  
   Adapter.adapt.adapter_address[0],   
   Adapter.adapt.adapter_address[1],   
   Adapter.adapt.adapter_address[2],   
   Adapter.adapt.adapter_address[3],   
   Adapter.adapt.adapter_address[4],   
   Adapter.adapt.adapter_address[5]  
   );
 }
 if (szMacAdr.IsEmpty())  {
  *nBuffLen = 0;
  return FALSE;
 }
 else{
  int nMacLen = szMacAdr.GetLength();
  *nBuffLen = nMacLen <= *nBuffLen ? nMacLen : *nBuffLen;
  memcpy(pMACAdr, szMacAdr.GetBuffer(*nBuffLen), *nBuffLen);
  return TRUE;
 }
}

如果想现存的DLL或者ActiveX控制, 在我的资源里有封装好的DLL与ActiveX控制下载, 直接调用接口使用即可