Re: Vista WH_JOURNALPLAYBACK

From:
"David Ching" <dc@remove-this.dcsoft.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 10 Apr 2007 03:09:33 GMT
Message-ID:
<NdDSh.6971$Kd3.2587@newssvr27.news.prodigy.net>
"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:iftl13d86jifbnu41j7bgl7nsj9rgoud9k@4ax.com...

Here's some more info from my client. I've blanked out the two program
names, since it
isn't clear I'm allowed to reveal what they actually are.
=================================================

Vista

The problem is consistent; MYPROGRAM can't tell THEOTHERPROGRAM to open a
database, and it
can't stuff results from a list box.

I can emulate it on an XP computer by turning off this single statement:

_hHookJrnl = SetWindowsHookEx(WH_JOURNALPLAYBACK, (HOOKPROC)
StuffKeystrokes, _hInstance,
NULL);

This sounds like this is the security "problem" that Vista is known to
have and for which
there are possibly two workarounds.

XP Pro

The problem appears to be caused by IE7.

The XP Pro user wrote this to me: "All I can say is that every single
computer I have with
xp pro that has been updated with the new Internet Explorer 7 has been
affected and
rendered useless and no matter what cannot be undone once the update takes
effect."

The problem is not consistent; MYPROGRAM can tell THEOTHERPROGRAM to open
a database, but
it can't stuff the results from a list box. This is the nature of the IE7
problem, it's
not consistent.

Another customer reported strange things happening after installing IE7
but he can no
longer replicate it.

So, bottom line, there are two issues here. Vista with privileges and XP
Pro with IE7.

I would say that Vista is the more important problem as its a show
stopper. Also there's a
solution.

If someone runs into the IE7 problem on XP Pro, I can tell them to install
XP Home or


How exactly can we help you with this, Joe? Do you have a test app with
source code that we can try on our various machines and debug it if we can
repro it?

I still don't understand why you don't simply OutputDebugString (or even
show in a temporary MessageBox) the result of SetWindowsHookEx() and any
relevant error code it sets, and whether or not your StuffKeystrokes is
being called! It seems you are still observing when the problem is
happening and not finding out what exact code is failing.

OTOH, I'm not even sure VC 1.52 even works on WinXP let alone Vista.

-- David

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