IWAppFormResize not updating properties

[Lenfors]

Hello!

I put a TIWButton on a form. In the IWAppFormResize event I execute:

Procedure TScreenInterfaceForm.IWAppFormResize(Sender: TObject);
Begin
   IWButton13.Caption := FormatDateTime('hh:nns', Now);
End;


When I'm resizing the form nothing changes on the button even as I can see that the event is executed!? 

But if I add a click event to the button and execute the same code it is updated.

procedure TScreenInterfaceForm.IWButton13Click(Sender: TObject);
begin
IWButton13.Caption := FormatDateTime('hh:nns', Now);
end;


Whats the difference? Why does changed to properties not reflect on screen? Do I have to invalidate or refresh for changes to be sent to screen?

Best regards, Mikael

---

I also tried to solve this with a timer:

Procedure TScreenInterfaceForm.IWAppFormResize(Sender: TObject);
Begin
   IWTimer1.Enabled := True;
End;

procedure TScreenInterfaceForm.IWTimer1Timer(Sender: TObject);
begin
   IWTimer1.Enabled := False;
   IWButton13.Caption := FormatDateTime('hh:nns', Now);
end;

The strange thing is that  "IWTimer1.Enabled := True;"  is executed, but the timer event never fires!?

Why? I'm so fustrated over IntraWeb.....

Best regards, Mikael