Delphi获取本机的MAC地址

Delphi获取本机的MAC地址：

uses
  NB30;

function GetAdaPterInfo(lana: Char): string;
var
  Adapter: TAdapterStatus;
  NCB: TNCB;
begin
  FillChar(NCB,Sizeof(NCB),0);
  NCB.ncb_command := Char(NCBRESET);
  NCB.ncb_lana_num := Lana;
  if Netbios(@NCB) <> Char(NRC_GOODRET) then
  begin
    Result := 'mac not found';
    exit;
  end;
  FillChar(NCB,Sizeof(NCB),0);
  NCB.ncb_command := Char(NCBASTAT);
  NCB.ncb_lana_num := Lana;
  NCB.ncb_callname := '*';

  FillChar(Adapter,Sizeof(Adapter),0);
  NCB.ncb_buffer := @Adapter;
  NCB.ncb_length := Sizeof(Adapter);
  if Netbios(@NCB) <> Char(NRC_GOODRET) then
  begin
    result :='mac not found';
    Exit;
  end;
  Result := 
    IntToHex(Byte(Adapter.adapter_address[0]), 2) + '_'+
    IntToHex(Byte(Adapter.adapter_address[1]), 2) + '_'+
    IntToHex(Byte(Adapter.adapter_address[2]), 2) + '_'+
    IntToHex(Byte(Adapter.adapter_address[3]), 2) + '_'+
    IntToHex(Byte(Adapter.adapter_address[4]), 2) + '_'+
    IntToHex(Byte(Adapter.adapter_address[5]), 2) ;
end;

function GetMACAddress: string;
var
  AdapterList: TLanaEnum;
  NCB: TNCB;
begin
  FillChar(NCB,Sizeof(NCB),0);
  NCB.ncb_command := Char(NCBENUM);
  NCB.ncb_buffer := @AdapterList;
  NCB.ncb_length := SizeOf(AdapterList);
  Netbios(@NCB);
  if Byte(AdapterList.length) > 0 then
    Result := GetAdapterInfo(AdapterList.lana[0])
  else
    Result := 'mac not found';
end;

调用: s:= GetMACAddress;