[lazarus] Patch: progressbar smooth and vertical (win32)

[Micha Nelissen]

Michael Van Canneyt wrote:
> On Thu, 26 Jun 2003, Micha Nelissen wrote:
>
>> The first one is Sender.Parent for sure. But the second one:
>> DrawMenuBar wants a handle of the window of the menu which needs to
>> be redrawn. Which often happens to be Sender.Owner. What guarantees
>> me that Sender.Owner is a TWinControl? It could be a TComponent just
>> as well....We're just lucky here that all menuitems on a form are
>> owned by the form, but they could have been owned by a TButton just
>> as well...no restriction there. How to get the form of the menu it's
>> on? It could be a popup menu as well...
>
> AFAIK, the owner should always be the form.

If I may ask, why? The owner is only responsible for memory management, in
delphi at least, is this different for the lcl? I don't know what prevents
me from writing in TForm1:

Button1 := TButton1.Create(Self)
MenuItem1 := TMenuItem.Create(Button1);

? Maybe not the convention, but I could imagine scenario's where one may
group components (for memory management) under a different component than a
form.

Micha.