> Paul,
>
> > The application is an MDI application. the child form in question is
> > created and released from the stack, then after it's released,
> > (using the release statement), and the main child form becomes
> > active, it explodes. But so far it's after I modify a record. For
> > the two variables involved, neither looks like a sane value.
>
> Unfortunately I don't use MDI ever so I don't know if there is
> something about this that could be tripping you up.
>
I sent you another message with some more info on this....
> > Now there is another MDI child form that is set up to work the same,
> > and it doesn't give me an error. I am going to look at the
> > properties, and make sure that they match up. If it's a property
> > difference, I will let you know which one works, and which one
> > explodes.
>
> Thanks, that will help.
>
> > > This suggests to me that there is either an uninitialized variable
> > > or that something has performed an invalid write to memory and
> > > trashed some of it. I am in favor of the thought that something is
> > > getting trashed somehow.
> >
> > Gee I didn't think Delphi did that, then again anything is possible.
>
> This would be a bug in IBO most likely.
>
When I figured out it was CachedUpdates, I was thinking that it could
be a pointer into some resource on the form (like the TIB_Query
control), and CachedUpdates didn't realise that the form and
therefore the TIB_Query didn't exist anymore, and that is what caused
it to access memory that didn't belong to the application anymore.
> > > What I need is a reproducible test case that duplicates this
> > > problem and then I can look at it.
> >
> > > I have been somewhat buried in things lately so I am not certain
> > > when I could have the problem resolved. I suspect in your efforts
> > > to isolate this you will hopefully solve it while you are at it.
> > >
> > > Keep us posted on your progress and in the meantime I will keep in
> > > the back of my mind what could be causing this.
> >
> > Will do, not sure how much I will do today, my wife spent the last
> > month dying of a cold, now I have it, and had to cancel two
> > important appointments today..... I may spend the afternoon
> > watching Star Trek re-runs on the Space channel. I hear the remote
> > calling me....
Still suffering, my father used to swaer that the best solution was a
good stiff shot of brandy. However as a Born Again Christian, I
don't believe in solving problems with alcohol, although even the
Puritans believed in "medicinal purposes".
Oh well, I need a couple of days off anyway, (cough, hack, wheeze,
sniff).
Paul Schmidt,
Tricat Technologies
Email: paul@...
Website: www.tricattechnologies.com