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Delphi中根据IP地址得到主机名

本实例演示如何利用TUdpSocket组件获取IP地址和主机名。

  向窗体上添加一个TUdpSocket组件,如图1所示。

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procedure TForm1.FormCreate(Sender: TObject);
 begin
  self.Caption:=UdpSocket1.LocalHostName;
  self.Caption:=self.Caption+’:’+UdpSocket1.LocalHostAddr;
end;

  程序代码如下:

unit Unit1;
inte易做图ce
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Sockets, ExtCtrls;

type
 TForm1 = class(TForm)
 UdpSocket1: TUdpSocket;
 procedure FormCreate(Sender: TObject);
private
 { Private declarations }
public
 { Public declarations }
end;

var
 Form1: TForm1;
 implementation
 {$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
 begin
  self.Caption:=UdpSocket1.LocalHostName;
  self.Caption:=self.Caption+’:’+UdpSocket1.LocalHostAddr;
 end;
end.

  保存文件,然后按F9键运行程序,程序运行结果如图2所示。

补充:软件开发 , Delphi ,
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