Re: Association of a Dialog Resource to the corresponding C++ Class

From:

David Wilkinson <no-reply@effisols.com>

Newsgroups:

microsoft.public.vc.ide_general

Date:

Wed, 29 Aug 2007 04:50:54 -0400

Message-ID:

<O3wPymh6HHA.600@TK2MSFTNGP05.phx.gbl>

Charles Wang[MSFT] wrote:

Hi David,
I could not assume anything in IDE since the design is undocumented. I am
trying to consult the Dev team for your question. However personally I do
not think that there are additional associations. It does not matter if you
associate more than one class with a dialog template. The dialog template
is stored in a resource file; no matter how many classes that you associate
with the same dialog template, CDialog constructor will construct the
dialog box in memory according the dialog template (I guess that it will
have a method to search the dialog template information from the resource
file by IDD). You can concurrently display more than one dialog box which
uses the same dialog template. I think that the information stored in a
resource file should be enough for creating a dialog box. Do you think that
it is necessary to have additional association files here?

Charles:

We are not talking about the compiling of the user's program here. We
are talking about how the IDE works. If I am in Resource View, and I
right-click on a dialog template and select Properties, then any
messages or events handlers I add are added to the class associated with
the template.

How does the IDE know what class this is? It seems there must be some
association list somewhere.

And this mechanism must implicitly assume that there is only one class
associated with the template. In my experience, if you associate two (or
more) different classes with the same template, then using the
Properties of the dialog template you can only add message handlers for
the last class that was associated (of course, the correct handlers for
the other associated classes can be added by accessing the Properties of
the class from Class View).

--
David Wilkinson
Visual C++ MVP