file transfer using tclientsocket and tserversocket

[AbbasAkhtar]

can anyone tell me if this code works, ive tried it and works for a almost 3 megabyte bmp file, works fine, ive tried it, offline only though, someone sed it does not work for larger files, but i dont no if he means online or offline ? can someone test this code please, and if it doesnt work for large files, e.g. 4/5 mb, can someone try to fix this ? or any solutions ?

also id like to use ics, but i cant find any samples for a direct file transfer, i dont wuna use ftp either, anyonc got any good samples, of file transfer, dont say "ics" cuz it dont come with file transfer samples, thanks,

unit Unit1;

interface

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

type
TForm1 = class(TForm)
ClientSocket1: TClientSocket;
ServerSocket1: TServerSocket;
btnTestSockets: TButton;
procedure ClientSocket1Read(Sender: TObject; Socket: TCustomWinSocket);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure ClientSocket1Disconnect(Sender: TObject;
Socket: TCustomWinSocket);
procedure ClientSocket1Connect(Sender: TObject;
Socket: TCustomWinSocket);
procedure ServerSocket1ClientConnect(Sender: TObject;
Socket: TCustomWinSocket);
procedure btnTestSocketsClick(Sender: TObject);
private
FStream: TFileStream;
{ Private-Deklarationen }
public
{ Public-Deklarationen }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.ClientSocket1Read(Sender: TObject;
Socket: TCustomWinSocket);
var
iLen: Integer;
Bfr: Pointer;
begin
iLen := Socket.ReceiveLength;
GetMem(Bfr, iLen);
try
Socket.ReceiveBuf(Bfr^, iLen);
FStream.Write(Bfr^, iLen);
finally
FreeMem(Bfr);
end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
FStream := nil;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
if Assigned(FStream) then
begin
FStream.Free;
FStream := nil;
end;
end;

procedure TForm1.ClientSocket1Disconnect(Sender: TObject;
Socket: TCustomWinSocket);
begin
if Assigned(FStream) then
begin
FStream.Free;
FStream := nil;
end;
end;

procedure TForm1.ClientSocket1Connect(Sender: TObject;
Socket: TCustomWinSocket);
begin
FStream := TFileStream.Create('c:\temp\test.stream.html', fmCreate or fmShareDenyWrite);
end;

procedure TForm1.ServerSocket1ClientConnect(Sender: TObject;
Socket: TCustomWinSocket);
begin
Socket.SendStream(TFileStream.Create('c:\temp\test.html', fmOpenRead or fmShareDenyWrite));
end;

procedure TForm1.btnTestSocketsClick(Sender: TObject);
begin
ServerSocket1.Active := True;
ClientSocket1.Active := True;
end;

end.