On 16 Mar 2001, at 18:16, Jason Wharton wrote:

To: <IBObjects@yahoogroups.com>
From: "Jason Wharton" <jwharton@...>
Date sent: Fri, 16 Mar 2001 18:16:19 -0700
Send reply to: IBObjects@yahoogroups.com
Subject: Re: [IBO] Exploding Application

> Paul,
>
> I still have this as a potentially open issue. Can we start from
> scratch on it?

I made a note to do some checking to see if this problem still
exists, if I forget, remind me again in a week or so.....

Paul







> Thanks,
> Jason Wharton
> CPS - Mesa AZ
> http://www.ibobjects.com
>
>
> ----- Original Message -----
> From: "Paul Schmidt" <paul@...>
> To: "Jason Wharton" <jwharton@...>;
> <IBObjects@yahoogroups.com> Sent: Wednesday, January 31, 2001 8:43 AM
> Subject: Re: [IBO] Exploding Application
>
>
> >
> >
> > On 30 Jan 2001, at 13:01, Jason Wharton wrote:
> >
> > To: <IBObjects@yahoogroups.com>
> > From: "Jason Wharton" <jwharton@...>
> > Date sent: Tue, 30 Jan 2001 13:01:13 -0700
> > Send reply to: IBObjects@yahoogroups.com
> > Subject: Re: [IBO] Exploding Application
> >
> > > 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
> >
> >
> >
> >
>
>
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Paul Schmidt,
Tricat Technologies
Email: paul@...
Website: www.tricattechnologies.com