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[Fehler] Unit1.pas(51): E2010 Inkompatible Typen: 'TNotifyEvent' und 'procedure, untyped pointer or untyped parameter'					

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procedure TForm1.showcover(text: string);
begin
showmessage(text);
end;

procedure TForm1.FormCreate(Sender: TObject);
var
i :integer;

begin
for i := 0 to 2 do begin
  thumb[i] := TImage.Create(Scrollbox1);
  thumb[i].Height := 100;
  thumb[i].Width := 100;
  thumb[i].Left:= 120*i;
  thumb[i].Top := 6;
  thumb[i].Name := 'thumb'+inttostr(i);
  thumb[i].Parent := Scrollbox1;
  thumb[i].Picture.LoadFromFile('pic/test.jpg');;
  thumb[i].Show;
  thumb[i].Stretch := true;
  thumb[i].onClick := showcover(thumb[i].name);
end;
end;

end.					

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procedure myButtonClick(Sender: TObject);
begin
  if Sender is TImage then
    ShowMessage((Sender as TImage).Name);
end;					

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thumb[i].onClick := myButtonClick;					

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type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure myButtonClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;