get mac address.txt

Delphi编程练习：取得本机MAC地址

//a指定多个网卡适配器中的哪一个0,1,2...
//use NB30;
function Tfrm_Main.NBGetAdapterAddress(a: integer): string;
var
  NCB: TNCB; // Netbios control block file://NetBios控制块
  ADAPTER: TADAPTERSTATUS; // Netbios adapter status//取网卡状态
  LANAENUM: TLANAENUM; // Netbios lana
  intIdx: Integer; // Temporary work value//临时变量
  cRC: Char; // Netbios return code//NetBios返回值
  strTemp: string; // Temporary string//临时变量
begin
 // Initialize
  Result := '';
  try
    // Zero control blocl
    ZeroMemory(@NCB,SizeOf(NCB));
    // Issue enum command
    NCB.ncb_command := Chr(NCBENUM);
    cRC := NetBios(@NCB);
    // Reissue enum command
    NCB.ncb_buffer := @LANAENUM;
    NCB.ncb_length := SizeOf(LANAENUM);
    cRC := NetBios(@NCB);
    if Ord(cRC) <> 0 then exit;
    // Reset adapter
    ZeroMemory(@NCB,SizeOf(NCB));
    NCB.ncb_command := Chr(NCBRESET);
    NCB.ncb_lana_num := LANAENUM.lana[a];
    cRC := NetBios(@NCB);
    if Ord(cRC) <> 0 then exit;
    // Get adapter address
    ZeroMemory(@NCB,SizeOf(NCB));
    NCB.ncb_command := Chr(NCBASTAT);
    NCB.ncb_lana_num := LANAENUM.lana[a];
    StrPCopy(NCB.ncb_callname,'*');
    NCB.ncb_buffer := @ADAPTER;
    NCB.ncb_length := SizeOf(ADAPTER);
    cRC := NetBios(@NCB);
    // Convert it to string
    strTemp := '';
    for intIdx := 0 to 5 do
      strTemp := strTemp + InttoHex(Integer(ADAPTER.adapter_address[intIdx]),2);
    Result := strTemp;
  finally

  end;

end;