Article View: borland.public.cppbuilder.nativeapi
Article #2376Re: My app closes, but cancels Windows shutdown?
From: A Nonymous
Date: Thu, 08 Mar 2007 20:59
Date: Thu, 08 Mar 2007 20:59
52 lines
2591 bytes
2591 bytes
"Remy Lebeau \(TeamB\)" <no.spam@no.spam.com> wrote in news:45f07307
@newsgroups.borland.com:
>
> "A Nonymous" <anonymous@hotmail.com> wrote in message
> news:Xns98ED90968E734anonymoushotmailcom@207.105.83.66...
>
>> I trap/handle the WM_QUERYENDSESSION and WM_ENDSESSION
>> messages to save my files and close. I set the Msg.Result = 1
>> (ok to shutdown) in each handler so Windows should continue
>> to shutdown. It use to work...
>
> According to the documentation, the return value for WM_ENDSESSION is
> 0, not 1.
>
It doesn't appear to work that way. You may not have seen my addendum
when you posted this response, but take a look at it.
To simplify the problem I created a new application. I created only a
handlet for the WM_QUERYENDSESSION and WM_ENDSESSION messages.
void __fastcall TFormMain::wmQueryEndSession(TMessage& Message)
{
Message.Result = 1;
Application->Terminate();
}
void __fastcall TFormMain::wmEndSession(TMessage& Message)
{
Message.Result = 1;
}
The app terminates and Windows restarts.
I changed the Message.Result to 0 (in both) and the application
terminated but Windows did not restart. This is the problem I am trying
to resolve.
I used my "fake" shutdown app to send the shutdown messages to both
versions of the test applcation and with Message.Result = 1, the app
shuts down, I get a true response from the SnedMessage and both wParam
and lParam are 0.
The same operation with Message.Result = 0, the app shuts down, I get a
FALSE response from the SnedMessage and both wParam and lParam are still
0.
On my real app, the app shuts down, I get a true response from the
SnedMessage and both wParam and lParam are 0, BUT Windows does not
restart.
There must be something else? I just don't know how to find it.
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X-Google-Thread: 10cc67,346f60f70c29a156 X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit Newsgroups: borland.public.cppbuilder.nativeapi Subject: Re: My app closes, but cancels Windows shutdown? From: A Nonymous <anonymous@hotmail.com> References: <Xns98ED90968E734anonymoushotmailcom@207.105.83.66> <45f07307@newsgroups.borland.com> Message-ID: <Xns98ED988E421A8anonymoushotmailcom@207.105.83.66> User-Agent: Xnews/5.04.25 NNTP-Posting-Host: 74.254.162.162 Date: 8 Mar 2007 12:59:16 -0800 X-Trace: newsgroups.borland.com 1173387556 74.254.162.162 (8 Mar 2007 12:59:16 -0800) Lines: 52 Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail