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Article View: borland.public.cppbuilder.internet.socket
Article #5372

Re: Using SNMP to extract the MAC Address in Builder 6

#5372
From: Mark Jacobs
Date: Tue, 24 Aug 2004 10:38
49 lines
2413 bytes
On 24 Aug 2004 03:07:02 -0700, Richard <Richard.Gallois@footfall.com>  
wrote:

> In the article http://bdn.borland.com/article/0,1410,26040,00.html 3  
> methods of how to obtain the MAC addresses of NICs are
> described. The third method uses SNMP and seems to work perfectly with  
> Builder 5, but I cannot get it to work with Builder 6. The
> program compiles and runs, but does not report any NICs present.  
> Exceptions are also thrown as the routine crashes due to no NICs.

AnsiString mjgetnicinfo()
{
   IP_ADAPTER_INFO AdapterInfo[16]; AnsiString retv=""; unsigned int ii;  
DWORD dwBufLen,dwStatus;
   dwBufLen=sizeof(AdapterInfo);  
dwStatus=GetAdaptersInfo(AdapterInfo,&dwBufLen);
   if (dwStatus!=ERROR_SUCCESS) return "**Could not Obtain NIC Info";
   PIP_ADAPTER_INFO pAdapterInfo=AdapterInfo;
   do
   {
     retv+="Name :"+AnsiString(pAdapterInfo->AdapterName)+"\r\nDescription  
:"+
           AnsiString(pAdapterInfo->Description)+"\r\nMAC :";
     for (ii=0;ii<pAdapterInfo->AddressLength;++ii)  
retv+=IntToHex(pAdapterInfo->Address[ii],2)+" ";
     retv+="\r\n"; pAdapterInfo=pAdapterInfo->Next;
   }
   while (pAdapterInfo);
   return retv;
}

Does the routine above work? Hope it helps.
-- 
Mark Jacobs
DK Computing
http://www.dkcomputing.co.uk
markj atty critical dotty co dotty uk
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