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unit Unit5;

interface

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

type
  TForm5 = class(TForm)
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
    FConsoleAllocated:Boolean;
    procedure WriteConsole(const s: String);
  public
    { Public-Deklarationen }
  end;

var
  Form5: TForm5;

implementation

{$R *.dfm}

Procedure TForm5.WriteConsole(Const s:String);
begin
  if FConsoleAllocated then Writeln(s);

end;

procedure TForm5.Button1Click(Sender: TObject);
begin
  WriteConsole(FormatDateTime('hh:nn:ss.zzz',now));
end;

procedure TForm5.FormCreate(Sender: TObject);
begin
    FConsoleAllocated := Windows.AllocConsole;
end;

procedure TForm5.FormDestroy(Sender: TObject);
begin
   if FConsoleAllocated then FreeConsole;

end;

end.					

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procedure TForm2.Button1Click(Sender: TObject);
begin
  WriteConsole(FormatDateTime('hh:nn:ss.zzz',now));
  WriteConsole('dir');
end;