Delphi 有很多方式可以抓網卡MAC

可是很多都是 網路線拔掉 或區域網路停用後就失效

Delphi 7有方式 可以抓實體網卡MAC 但是Delphi XE5 不行

所以目前的做法是 Delphi 7 做成DLL 給XE5呼叫

以下是Delphi 7 DLL原代碼

library mygetmac;
 
{ Important note about DLL memory management: ShareMem must be the
  first unit in your library's USES clause AND your project's (select
  Project-View Source) USES clause if your DLL exports any procedures or
  functions that pass strings as parameters or function results. This
  applies to all strings passed to and from your DLL--even those that
  are nested in records and classes. ShareMem is the interface unit to
  the BORLNDMM.DLL shared memory manager, which must be deployed along
  with your DLL. To avoid using BORLNDMM.DLL, pass string information
  using PChar or ShortString parameters. }
uses
  SysUtils,
  Classes,
  windows,
  dialogs;
 
const
  MAX_HOSTNAME_LEN = 128; { from IPTYPES.H }
  MAX_DOMAIN_NAME_LEN = 128;
  MAX_SCOPE_ID_LEN = 256;
  MAX_ADAPTER_NAME_LENGTH = 256;
  MAX_ADAPTER_DESCRIPTION_LENGTH = 128;
  MAX_ADAPTER_ADDRESS_LENGTH = 8;
 
type
  TIPAddressString = array[0..4 * 4 - 1] of Char;
  PIPAddrString = ^TIPAddrString;
  TIPAddrString = record
    Next: PIPAddrString;
    IPAddress: TIPAddressString;
    IPMask: TIPAddressString;
    Context: Integer;
  end;
  PFixedInfo = ^TFixedInfo;
  TFixedInfo = record { FIXED_INFO }
    HostName: array[0..MAX_HOSTNAME_LEN + 3] of Char;
    DomainName: array[0..MAX_DOMAIN_NAME_LEN + 3] of Char;
    CurrentDNSServer: PIPAddrString;
    DNSServerList: TIPAddrString;
    NodeType: Integer;
    ScopeId: array[0..MAX_SCOPE_ID_LEN + 3] of Char;
    EnableRouting: Integer;
    EnableProxy: Integer;
    EnableDNS: Integer;
  end;
  PIPAdapterInfo = ^TIPAdapterInfo;
  TIPAdapterInfo = record { IP_ADAPTER_INFO }
    Next: PIPAdapterInfo;
    ComboIndex: Integer;
    AdapterName: array[0..MAX_ADAPTER_NAME_LENGTH + 3] of Char;
    Description: array[0..MAX_ADAPTER_DESCRIPTION_LENGTH + 3] of Char;
    AddressLength: Integer;
    Address: array[1..MAX_ADAPTER_ADDRESS_LENGTH] of Byte;
    Index: Integer;
    _Type: Integer;
    DHCPEnabled: Integer;
    CurrentIPAddress: PIPAddrString;
    IPAddressList: TIPAddrString;
    GatewayList: TIPAddrString;
    DHCPServer: TIPAddrString;
    HaveWINS: Bool;
    PrimaryWINSServer: TIPAddrString;
    SecondaryWINSServer: TIPAddrString;
    LeaseObtained: Integer;
    LeaseExpires: Integer;
  end;
 
  //FUNCTION GetAdapterInformation:string;
 
function GetAdaptersInfo(AI: PIPAdapterInfo; var BufLen: Integer): Integer;
  stdcall; external 'iphlpapi.dll' Name 'GetAdaptersInfo';
 
{$R *.res}
 
//FUNCTION GetAdapterInformation:string;
 
FUNCTION sygetmac:pchar; stdcall;
var
  AI, Work: PIPAdapterInfo;
  Size: Integer;
  Res: Integer;
  function MACToStr(ByteArr: PByte; Len: Integer): string;
  begin
    Result := '';
    while (Len > 0) do begin
      Result := Result + IntToHex(ByteArr^, 2) + '-';
      ByteArr := Pointer(Integer(ByteArr) + SizeOf(Byte));
      Dec(Len);
    end;
    SetLength(Result, Length(Result) - 1); { remove last dash }
  end;
  function GetAddrString(Addr: PIPAddrString): string;
  begin
    Result := '';
    while (Addr <> nil) do begin
      Result := Result + 'A: ' + Addr^.IPAddress + ' M: ' + Addr^.IPMask + #13;
      Addr := Addr^.Next;
    end;
  end;
  function TimeTToDateTimeStr(TimeT: Integer): string;
  const UnixDateDelta = 25569; { days between 12/31/1899 and 1/1/1970 }
  var
    DT: TDateTime;
    TZ: TTimeZoneInformation;
    Res: DWord;
  begin
    if (TimeT = 0) then Result := ''
    else begin
      { Unix TIME_T is secs since 1/1/1970 }
      DT := UnixDateDelta + (TimeT / (24 * 60 * 60)); { in UTC }
      { calculate bias }
      Res := GetTimeZoneInformation(TZ);
      if (Res = TIME_ZONE_ID_INVALID) then RaiseLastWin32Error;
      if (Res = TIME_ZONE_ID_STANDARD) then begin
        DT := DT - ((TZ.Bias + TZ.StandardBias) / (24 * 60));
        Result := DateTimeToStr(DT) + ' ' + WideCharToString(TZ.StandardName);
      end
      else begin { daylight saving time }
        DT := DT - ((TZ.Bias + TZ.DaylightBias) / (24 * 60));
        Result := DateTimeToStr(DT) + ' ' + WideCharToString(TZ.DaylightName);
      end;
    end;
  end;
var s:string;
begin
  Size := 5120;
  GetMem(AI, Size);
  Res := GetAdaptersInfo(AI, Size);
  if (Res <> ERROR_SUCCESS) then begin
    SetLastError(Res);
    RaiseLastWin32Error;
  end;
    Work := AI;
  //repeat
    //Add(' Adapter address: ' + MACToStr(@Work^.Address, Work^.AddressLength));
    //showmessage(' Adapter address: ' + MACToStr(@Work^.Address, Work^.AddressLength));
    //showmessage(MACToStr(@Work^.Address, Work^.AddressLength));
    s:=PChar(MACToStr(@Work^.Address, Work^.AddressLength));
    while Pos('-',s)>0 do Delete(s,Pos('-',s),1);
    result:=PChar(s);
    Work := Work^.Next;
  //until (Work = nil);
  FreeMem(AI);
  //ShowMessage('???');
end;
 
exports
sygetmac name 'sygetmac';
 
begin
end.
 
然後用XE5呼叫
 

unit Unit1;

interface

uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;

type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}
function sygetmac:PAnsiChar; external 'mygetmac.dll' name 'sygetmac';

procedure TForm1.Button1Click(Sender: TObject);
begin
ShowMessage(sygetmac);
end;

end.

 

此DLL 無論 網路線拔掉 或區域網路停用 都可以抓到實體網卡MAC

附上DLL給需要的人

https://drive.google.com/file/d/0B_Boa0V6iHIuTXk1ZURWN3hlY28/view?usp=sharing

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