On Tue, Mar 20, 2007 at 01:58:56PM +0300, Al Boldi wrote:
> Antonio Sanguigni wrote:
> > And, broadly speaking, it is not a good practice modifying an ancestor to
> > suite these needs.
>
> Yes, as this would probably require a recompile of the ancestor.
>
> But, why is it not possible to override the ancestor?
The size of fields of TObject is used in planning the layout of descendants
of TObject. Overriding only makes use of room already there (reserved in the
VMT by the virtual directive), it doesn't create room.
This is also why you can't override non virtual methods.
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