Problem mit Freigeben von CreateMessageDialog

[Luckie]

Geht.

Delphi-Quellcode:

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
    MessageForm: TForm;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  MessageForm.ShowModal;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  MessageForm := CreateMessageDialog('Test', mtInformation, []);
  with MessageForm do
    begin
      BorderIcons := [];
      BorderStyle := bsDialog;
      Font.Height := 15;
      Font.Style  := [fsBold];
      Color       := $00F8E4D8;
      Height      := 55;
      Width       := 320;
      FormStyle   := fsStayOnTop;
    end;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  FreeAndNil(MessageForm);
end;