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Delphi获取ip和ip变化报警代码

delphi获取ip和显示ip变化报警的代码。


代码如下:

首先打开Delphi新建一个工程,添加一个定时器Timer1、一个标签Label1、一个PopupMenu1,并且为PopupMenu1添加一个Exit菜单项。下面就是全部的源代码:

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.

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