pserver.pas

一个在dll中的通过UDP传送信息.rar

unit pserver;

interface

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

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    NMUDP1: TNMUDP;
    procedure NMUDP1DataReceived(Sender: TComponent; NumberBytes: Integer;
      FromIP: String; Port: Integer);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.NMUDP1DataReceived(Sender: TComponent;
  NumberBytes: Integer; FromIP: String; Port: Integer);
var
  MyStream: TMemoryStream;
  TmpStr: String;
begin
  MyStream := TMemoryStream.Create;
  try
    NMUDP1.ReadStream(MyStream);
    SetLength(TmpStr,NumberBytes);
    MyStream.Read(TmpStr[1],NumberBytes);
  finally
    MyStream.Free;
  end;
  Edit1.Text :=tmpStr;
end;

end.