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| unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, IdBaseComponent, IdComponent, IdTCPConnection,
IdTCPClient, StdCtrls, XPMan, IdAntiFreezeBase, IdAntiFreeze;
type
TForm1 = class(TForm)
Edit1: TEdit;
Label1: TLabel;
Label2: TLabel;
Edit2: TEdit;
Button1: TButton;
Button2: TButton;
IdTCPClient1: TIdTCPClient;
Shape1: TShape;
Memo1: TMemo;
Timer1: TTimer;
Label3: TLabel;
Edit4: TEdit;
Edit3: TEdit;
Button3: TButton;
XPManifest1: TXPManifest;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Timer1Timer(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure Edit3KeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
private
{ Déclarations privées }
FThread: TThread;
procedure ThreadClientReceiveLineEventHandler(Sender: TObject; const ALine: string);
public
{ Déclarations publiques }
destructor Destroy(); override;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
type
TThreadClientReceiveLineEvent = procedure(Sender: TObject; const ALine: string) of object;
TThreadClient = class(TThread)
private
FIdTCPClient: TIdTCPClient;
FCurrentLine: string;
FOnReceiveLine: TThreadClientReceiveLineEvent;
procedure DoReceiveLine();
protected
// Méthodes redéfinies
procedure Execute(); override;
public
// Constructeurs Publiques
constructor Create(AFIdTCPClient: TIdTCPClient; AOnReceiveLine: TThreadClientReceiveLineEvent);
property OnReceiveLine: TThreadClientReceiveLineEvent read FOnReceiveLine write FOnReceiveLine;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
if Assigned(FThread) then
FThread.Terminate();
IdTCPClient1.Disconnect();
IdTCPClient1.Port:= StrToInt(edit2.text);
IdTCPClient1.Host:= Edit1.Text;
IdTCPClient1.Connect();
FreeAndNil(FThread);
FThread := TThreadClient.Create(IdTCPClient1, ThreadClientReceiveLineEventHandler);
if (edit1.Text<>'') and (edit2.Text<>'') and (edit4.Text <>'') then
begin
Shape1.Brush.Color := clblue;
button1.Enabled:=false;
button2.Enabled:=true;
button3.Enabled:=true;
edit3.Enabled:=true;
edit3.SetFocus;
end;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
IdTCPClient1.Disconnect;
Shape1.Brush.Color := clred;
button1.Enabled:=true;
button3.Enabled:=false;
edit3.Enabled:=false;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
IdTCPClient1.WriteLn(edit4.text+': '+edit3.Text);
memo1.Lines.Append('Moi: '+edit3.Text);
edit3.Text:='';
edit3.SetFocus;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
memo1.Clear;
end;
destructor TForm1.Destroy();
begin
FreeAndNil(FThread); // Arrete, attend puis détruit le thread
inherited Destroy();
end;
procedure TForm1.Edit3KeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
begin
if Key = VK_return then
begin
IdTCPClient1.WriteLn(edit4.text+': '+edit3.Text);
memo1.Lines.Append('Moi: '+edit3.Text);
edit3.Text:='';
edit3.SetFocus;
end;
end;
procedure TForm1.ThreadClientReceiveLineEventHandler(Sender: TObject; const ALine: string);
begin
memo1.Lines.Append(ALine);
end;
// -------
constructor TThreadClient.Create(AFIdTCPClient: TIdTCPClient; AOnReceiveLine: TThreadClientReceiveLineEvent);
begin
inherited Create(False);
FIdTCPClient := AFIdTCPClient;
FOnReceiveLine := AOnReceiveLine;
end;
procedure TThreadClient.Execute();
begin
while not Terminated and FIdTCPClient.Connected do
begin
if FIdTCPClient.InputBuffer.Size = 0 then
begin
FIdTCPClient.ReadFromStack(True, 0, False);
FCurrentLine := '';
while FIdTCPClient.InputBuffer.Size > 0 do
FCurrentLine := FIdTCPClient.ReadLn + Chr(13);
if FCurrentLine <> '' then
Synchronize(DoReceiveLine());
end;
end;
end;
procedure TThreadClient.DoReceiveLine();
begin
if Assigned(FOnReceiveLine) then
FOnReceiveLine(Sender, FCurrentLine);
end;
end. |
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