Re: Question on Progress dialog

From:
"AliR \(VC++ MVP\)" <AliR@online.nospam>
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 24 Jan 2008 21:18:24 GMT
Message-ID:
<Ag7mj.1533$Ej5.1270@newssvr29.news.prodigy.net>
The OP wanted to make his Progress dialog reusable, so he didn't want the
dialog to start the thread, all he wanted was for it to inform some other
class that the user pressed Cancel.

AliR.

"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:mqrhp3t5pnvpkd150nbd02c706qc8ii2mp@4ax.com...

But why add something as complex as a static callback when none is needed?
joe

On Thu, 24 Jan 2008 11:14:00 -0800, "David Ching"
<dc@remove-this.dcsoft.com> wrote:

"David Ching" <dc@remove-this.dcsoft.com> wrote in message
news:MZ4mj.2933$nK5.2566@nlpi069.nbdc.sbc.com...

Admittedly, it is not all that readable to do it this way, but I just
don't like extra classes, or forcing the caller to use multiple
inheritance to derive from a class just use a library. If all libraries
did this, the poor caller would have to derive from many classes, and
sooner or later the diamond problem asserts itself.


But I suppose if you created an Interface (with something called
IProgressBarReceiver and not CProgressBarReceiver), then what you propose
is
exactly how it is done in the COM world. I have no problem deriving from
multiple interfaces, must not multiple implementations.

But I still like the static callback better. :-)

-- David


Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm

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