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[Specialwork]

Also bei mir funktioniert es anstandlos

Delphi-Quellcode:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Timer1: TTimer;
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  // Achtung: Timer1.Enabled=False;
  Timer1.Enabled:=True;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Randomize;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  Left := Random(Screen.Width-Width);
  Top := Random(Screen.Height-Height);
end;

end.

Gruß, Tom