Turns out you were right. How tricky.
I thought, I had done a rebuild. - but maybe not.
> -----Original Message-----
> From: Max Nilson [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, September 14, 1999 10:58 AM
> To: Multiple recipients of list delphi
> Subject: RE: [DUG]: Who knows the magic word?
>
> Myles Penlington asked us:
>
> > I am trying to create a class derived from TObject in the {$M+}
> > (RTTI turned on).
>
> > But it does not work? - ClassInfo Fails
> > But if I create a class that has the same signature as TPersistent
>
> I have created a class hierarchy based on TInterfacedObject with the RTTI
> turned on. All working perfectly, but during the process I found that
> there is a catch to the process creating $M+ enabled classes. That is that
> the compiler doesn't notice the $M+ directive being added and flag the
> unit interface as changed. So any dependant units don't get compiled and
> the RTTI information expected in them is extremely messed up.
>
> The best thing I found was to do a complete project build after fiddling
> with the RTTI generation and than everything would work cleanly after
> that.
>
> Cheers, Max.
>
>
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