Re: Suspicious change in dialog resolution

From:
"Tom Serface" <tom.nospam@camaswood.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Wed, 28 Feb 2007 17:32:18 -0800
Message-ID:
<6BD5F528-72C3-4316-BDEA-B26DC33C175E@microsoft.com>
Could be that something is changing the font for your dialog(s) which would
cause you this kind of grief. Do other parts of your system (I.E., other
programs) experience the same behavior? If so, perhaps some system call is
changing the default font for dialog controls? You could try something like
Purify or BoundsChecker to see if that could help you detect an anomoly.

Tom

<hal9000cr@gmail.com> wrote in message
news:1172712319.778826.310790@8g2000cwh.googlegroups.com...

We are testing a authentication method for a single sign on system.
The authentication process, that is called through a custom Gina,
presents a dialog with a PropertySheet. One of the tabs is a page that
corresponds to our 'method' this setup works fine but after a couple
of days of running on a machine it randomly appears that someone is
lowering the resolution of our dialog, the outer frame stays the same.
What happens is that everything in our dialog is now much bigger, as
if the resolution was lowered, so the dialog items are out of place
and some items don't even show up because they are clipped by the
PropertySheet.

It sounds like that someone, most likely us, is trashing some area of
memory somewhere.

Is there a way we can detect illegal access to memory. We tried using
debug version of our method but the loading framework can't seem to
load this version of the dll.

Does anyone have any ideas as to what might be happening? Any
suggestion would be greatly appreciated.

Thanks.

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