Re: Realizing "confirm cancel" functionality with property sheets

From:

"Tom Serface" <tom.nospam@camaswood.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 27 Sep 2007 07:58:17 -0700

Message-ID:

<E651BD06-F75C-4A61-96B6-F77C2C58558D@microsoft.com>

That's the better way to do it (OnQueryCancel()), but I thought you didn't
want to do that so I was presenting another way. You could, of course,
catch the WM_CLOSE message as well, but I'm glad you got it working. The
way you're going gives you a lot of flexibility.

Tom

"Martin" <martin-g@mail.ru> wrote in message
news:1190880725.445117.114460@r29g2000hsg.googlegroups.com...

On Sep 24, 7:18 pm, "Tom Serface" <tom.nos...@camaswood.com> wrote:

Hi Martin,

Try this,

Put in a handler message for cancel:

BEGIN_MESSAGE_MAP(CMySheet, CPropertySheet)
ON_COMMAND(IDCANCEL, OnCancel)
END_MESSAGE_MAP()

Then do the handler:

void CMySheet::OnCancel()
{
     if(AfxMessageBox("Do you want to cancel?",MB_YESNO) == IDYES) {
          //Any extra code you need
          EndModalLoop( IDCANCEL );
     }

}

Don't forget this in your .h file:

virtual void OnCancel();

You could do the same thing with IDOK if you wanted to check that too.

You can also use this to have one page communicate with the others (I.E.,
a
value changes or needs to be checked)

http://msdn2.microsoft.com/en-us/library/ykkkze85(VS.80).aspx

HTH,

Tom

Thanks Tom. Though I was oblidged to go another way. Using 'OnCancel'
this way doesn't cover cases when user simply closes the property
sheet using cross or sysmenu. I decided to override 'OnQueryCancel'
for every page, and it seems to work normally, though the method can't
be called elegant.