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;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    Button2: TButton;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: Tobject);
var
  ComputerName:pchar;
  Size: Cardinal;
  Re:Boolean;
begin
{ CopyRight (C) Bowman 2000 }
{ [e-mail] }
  {Set Size}
  Size := MAX_COMPUTERNAME_LENGTH+1;
  Getmem(ComputerName,Size);
  {retrieve computer name}
  Re:=GetComputerName(ComputerName, Size);
  if re then
    Edit1.Text := StrPas(Computername)
  else Showmessage('Computer Name Not Found');
  Freemem(ComputerName);
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  ComputerName: pchar;
  Size:Cardinal;
begin
{ CopyRight (C) Bowman 2000 }
{ [e-mail] }
  {Set Size}
  Size:= MAX_COMPUTERNAME_LENGTH+1;
  GetMem(ComputerName,Size) ;
  StrPCopy(ComputerName, Edit1.Text);

  {set computer name}
  if SetComputerName(ComputerName) then
    ShowMessage('Need Reboot to make the new name work')
  else ShowMessage('Failed');
  Freemem(ComputerName);
end;

end.