Re: Mechanism for this oddity?

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.language
Date:
Thu, 22 Oct 2009 23:02:46 -0400
Message-ID:
<OmqDS14UKHA.3936@TK2MSFTNGP02.phx.gbl>
Vincent Fatica wrote:

On XP SP3, I start WinWord (Office 07) and minimize it. Using =

ProcessExplorer

(SysInternals v 11.04) I "suspend" WinWord (I figure ProcessExplorer =

suspends

each thread of WinWord). Then I open an Explorer window and navigate =

to my

profile dir ... Favorites ... double-click on a link ... nothing =

happens,

Explorer's caption includes "not responding". If I try to close the =

Explorer

window, I'm prompted to terminate Explorer (cancel that). If I go =

back to

ProcessExplorer and "resume" WinWord, all's well; the link opens and =

Explorer's

OK.
 
While I don't think it's a good idea to suspend an app like that, I'm =

curious

about the mechanism by which this peculiar interaction takes place ... =

any

speculation?


See SendMessage, read aboud DDE.

In a another related incident, if I try (in WinDBg) to start a certain =

3rd-party

GUI app while WinWord is so suspended, WinDbg tells me "debugee is =

running"

right in the middle of loading DLLs. Resuming WinWord causes this app =

to resume

loading DLLs, with UXTheme.dll being the first one loaded after the =

hang. Only

then does the app actually appear. ... any speculation?


See SendMessage. For whatever reason, the app is broadcasting a message.
--
With best wishes,
    Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not =
necessarily a good idea. It is hard to be sure where they are going to =
land, and it could be dangerous sitting under them as they fly overhead. =
-- RFC 1925

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