网络工程师讲义

网络工程师讲义

不错,挺好用的.

xiankankan

unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Menus, StdCtrls, ExtCtrls, Winsock; //首先要添加winsock
type
  TForm1 = class(TForm)
    Timer1: TTimer;
    Label1: TLabel;
    PopupMenu1: TPopupMenu;
    Exit: TMenuItem;
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Label1MouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
    procedure Label1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure ExitClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  oldx,oldy: integer;//添加变量,用做移动窗体
  oldIp: string;
implementation
{$R *.dfm}
//下面就是关键所在了
function LIP : string;
type
  TaPInAddr = array [0..10] of PInAddr;
  PaPInAddr = ^TaPInAddr;
var
  phe  : PHostEnt;
  pptr : PaPInAddr;
  Buffer : array [0..63] of char;
  I    : Integer;
  GInitData      : TWSADATA;
begin
  WSAStartup($101, GInitData);
  Result := '';
  GetHostName(Buffer, SizeOf(Buffer));
  phe :=GetHostByName(buffer);
  if phe = nil then Exit;
  pptr := PaPInAddr(Phe^.h_addr_list);
  I := 0;
  while pptr^[I] <> nil do begin
    result:=StrPas(inet_ntoa(pptr^[I]^));
    Inc(I);
  end;
  WSACleanup;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  with Label1 do  //定义属性
  begin
    Caption:='';
    Font.Charset:=ANSI_CHARSET;
    Font.Name:='Arial';
    Font.Size:=10;
    Font.Color:=clRed;
    Align:=alClient;
    PopupMenu:=popupmenu1;
  end;

  Timer1.Interval:=1000;
  Timer1.Enabled:=true;
  Label1.Caption:='IP:'+LIP; //赋值，把Ip赋值给label1
  oldIp:=LIP;
  BorderStyle:=bsNone;
  Alphablend:=true; //呵呵，这个就是让窗口变透明的办法了
  Alphablendvalue:=100;
  FormStyle:=fsStayOnTop; //让窗体总在最前面
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  Label1.Caption :='IP:'+LIP;
  if oldip <> LIP then
    Showmessage('IP地址已经改变,请检查!');//提醒用户
end;

procedure TForm1.Label1MouseMove(Sender: TObject; Shift: TShiftState; X,
  Y: Integer);
begin
  if ssleft in shift then  //移动窗体Form1
  begin
     Form1.Left:=Form1.Left+x-oldx;
     Form1.Top:=Form1.top+y-oldy;
  end;
end;

procedure TForm1.Label1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  oldx:=x;
  oldy:=y;
end;

procedure TForm1.ExitClick(Sender: TObject);
begin
  Close;
end;
end.

thank you

好东西要顶

顶一下再说！

http://www.cpcw.com/dzbym/main.html

十分感谢

好东西，来一份，谢谢斑竹！

工程师用的啊,要看看