Bonjour,

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unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, CPortCtl, CPort;
 
type
  TForm1 = class(TForm)
    ComPort1: TComPort;
    Button1: TButton;
    Edit1: TEdit;
    Memo1: TMemo;
    ComComboBox1: TComComboBox;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
     procedure SendCommand(StrCommand: string);
          procedure Sendmsg(StrCommand: string);
    procedure ComPort1RxChar(Sender: TObject; Count: Integer);
    procedure Button2Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Déclarations privées }
  public
    { Déclarations publiques }
  end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
procedure TForm1.SendCommand(strCommand: string);
var s : string;
begin
    s := strCommand+chr(13);
    Comport1.WriteStr(s);
end;
 
procedure TForm1.Sendmsg(strCommand: string);
var s : string;
begin
    s := strCommand+chr(26);
    Comport1.WriteStr(s);
end;
 
procedure TForm1.Button1Click(Sender: TObject);
begin
Sendmsg(edit1.Text);
end;
 
 
 
 
procedure TForm1.ComPort1RxChar(Sender: TObject; Count: Integer);
var
Str: String;
begin
Comport1.ReadStr(Str,count);
memo1.Text:=memo1.Text+str;
end;
 
 
 
 
procedure TForm1.Button2Click(Sender: TObject);
begin
COMPORT1.Open;
end;
 
procedure TForm1.FormCreate(Sender: TObject);
begin
memo1.Clear;
 
end;
 
procedure TForm1.Button3Click(Sender: TObject);
begin
SendCommand('AT+CMGS=,"'+'600'+'",15');
end;
 
end.

voici le code source de mon application et pour le résultat il m'affiche toujours ERROR

Merci