Re: calling a frame's method

On Apr 1, 12:04 pm, Danny Str=FCmpel <dannys9@[EMAIL PROTECTED]
> wrote:
> peterg12...@[EMAIL PROTECTED]
 schrieb:
>
> > CurrentFrame is type TFrame. Rob, you're right - it is a compilation
> > error it says that DoSomeInitializations is an undeclared identifier
> > at line 2:
>
> > CurrentFrame :=3D Frame1;
> > CurrentFrame.DoSomeInitializations;
>
> > even though Frame1 has a public procedure called
> > DoSomeInitializations.
>
> That's because there's no DoSomeInitializations in TFrame. Do what Erich
> G=FCnthner suggested, and you'll be fine:
>
> type
>    TBaseFrame =3D class(TFrame)
>    public
>      procedure DoSomeInitializations; virtual;
>    end;
>
>    TYourFrame1 =3D class(TBaseFrame)
>      { maybe override DoSomeInitializations }
>    end;
>
> var
>    Frame1: TYourFrame1;
>    CurrentFrame: TBaseFrame;
>
> When you now assign Frame1 do CurrentFrame and call
> DoSomeInitializations from there, it will work.
>
> You can put common stuff into TBaseFrame.DoSomeInitializations and
> additional stuff into the overridden methods.
>
> --
> Den Todesanzeigen zufolge sterben gemeine und unwichtige Leute niemals.
>
> ...und wech
>           Danny <dannys9 (at) gmx (dot) de>

OK, I think I've got it. Basically my frames should be deriving from a
newly created TBaseFrame class, which contains my method. Then
CurrentFrame calls the method and eventually each frame's custom
method will be called.

I'll give it a shot. Thanks all!