Article View: borland.public.cppbuilder.nativeapi
Article #7700Re: WM_CLOSE / YesNo Dialog on closing program.
From: Remy Lebeau (TeamB)
Date: Mon, 10 Jan 2005 18:33
Date: Mon, 10 Jan 2005 18:33
38 lines
2179 bytes
2179 bytes
"Sinead Bunyan" <nospamSBUNYAN@DAIRYMASTER.COM> wrote in message
news:41e2a036@newsgroups.borland.com...
> I would like to know what is the best way of asking the user for a
> YES/NO dialog when closing a program by clicking with the mouse
> on the X
Use the form's OnCloseQuery event for that. Set the CanClose parameter
accordingly.
> but this should not be required if windows is shutting down or doing a
restart.
For that, you need to intercept the WM_QUERYENDSESSION message as well. The
best place to do that is to override the form's WndProc() method, ie:
bool ShuttingDown = false;
void __fastcall TForm1::WndProc(TMessage &Message)
{
if( Message.Msg == WM_QUERYENDSESSION )
ShuttingDown = true;
TForm::WndProc(Message);
}
void __fastcall TForm1::FormCloseQuery(TObject *Sender, bool &CanClose)
{
if( !ShuttingDown )
{
if( MessageDlg("Are you sure you would like to exit?",
mtConfirmation, TMsgDlgButtons() << mbYes << mbNo, 0) == mrNo )
CanClose = false;
}
}
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X-Google-Thread: 10cc67,d947b84c7cfca26c X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit From: "Remy Lebeau \(TeamB\)" <no.spam@no.spam.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <41e2a036@newsgroups.borland.com> Subject: Re: WM_CLOSE / YesNo Dialog on closing program. Date: Mon, 10 Jan 2005 10:33:12 -0800 Lines: 40 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 NNTP-Posting-Host: 68.69.17.41 Message-ID: <41e2c9ff$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1105381887 68.69.17.41 (10 Jan 2005 10:31:27 -0800) Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!newsfeed2.dallas1.level3.net!news.level3.com!news-out.visi.com!spool-3.news.visi.com!news.tele.dk!news.tele.dk!small.news.tele.dk!lnewsoutpeer01.lnd.ops.eu.uu.net!lnewsinpeer00.lnd.ops.eu.uu.net!emea.uu.net!news-peer-test!btnet!newsfeed.bt.es!caladan.landsraad.net!newsgroups.borland.com!not-for-mail