Re: Basic question regarding checkboxes

From:

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 15 Jan 2008 10:13:59 -0500

Message-ID:

<ObiYIl4VIHA.4712@TK2MSFTNGP04.phx.gbl>

<stewb85@gmail.com> wrote in message
news:cecce302-e85a-44d0-b2ee-d6d9812f9df5@k39g2000hsf.googlegroups.com...

Hmm, that makes some sense. Just to give you another brief overview
of whats happening

MyApplicationDialog

(various code here)

CallFilter (parameters);

---------------------------------------------------------------------------------
Filter (parameters)

(various code)

if x<150
CheckDlgButton(My Application);

Now, if this was C obviously to pass the value from one module to
another, you set a pointer, put this pointer in the function
parameters, and put that in the header files. However, this seems not
to be the case with MFC.

How do I go about creating the pointer to my Dialog box. And I've
heard of the this pointer, but never really used it before.

Cheers again.

Easy, using the method you describe:
// from diaog class
  Filter (this, parameters);

void Filter (CWnd* pDialog, parameters)
{
   (various code)
    if (x<150)
     pDialog->CheckDlgButton(My Application);
}

The new parameter could also be a MyApplicationDialog* if you include the
required header file. This would let you call your own dialog functions, in
addition to CDialog/CWnd functions.

--
Scott McPhillips [VC++ MVP]