unit1.pas

< Delphi网络通信协议分析与应用实现>>一书的源代码。

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls,nb30;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
Var
  NCB : TNCB;
  ADAPTER : TADAPTERSTATUS;
  LANAENUM : TLANAENUM;
  intIdx : Integer;
  re : Char;
  buf : String;
begin
  Try
{    ZeroMemory(@NCB, SizeOf(NCB));
    NCB.ncb_command := Chr(NCBENUM);
    re := NetBios(@NCB);

    // Reissue enum command
    NCB.ncb_buffer := @LANAENUM;
    NCB.ncb_length := SizeOf(LANAENUM);
    re := NetBios(@NCB);
    If Ord(re)<>0 Then
      exit;
 }
 { Copyright (C) Bowman }
 { [e-mail] }
    // Reset adapter
    ZeroMemory(@NCB, SizeOf(NCB));
    NCB.ncb_command := Chr(NCBRESET);
    NCB.ncb_lana_num := LANAENUM.lana[0];//important
    re := NetBios(@NCB);
    If Ord(re)<>0 Then
      exit;

    // Get adapter address
    ZeroMemory(@NCB, SizeOf(NCB));
    NCB.ncb_command := Chr(NCBASTAT);
    NCB.ncb_lana_num := LANAENUM.lana[0];////bowman
    StrPCopy(NCB.ncb_callname, '*');
    NCB.ncb_buffer := @ADAPTER;
    NCB.ncb_length := SizeOf(ADAPTER);
    re := NetBios(@NCB);
    If Ord(re)<>0 Then
      exit;

    buf := '';
    For intIdx := 0 To 5 Do
      buf := buf + InttoHex(Integer(ADAPTER.adapter_address[intIdx]),2)+'-';
    edit1.Text := copy(buf,0,length(buf)-1);
  Finally 
  End; 

end;

end.