Re: Adding text to a listbox from main frame

From:
"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 01 Aug 2006 13:40:20 -0400
Message-ID:
<OMV9$FZtGHA.1216@TK2MSFTNGP03.phx.gbl>
 >
 > CDialog *dlg; //defined in .h file
 >
 > dlg = new TabCtrlHolder();
 > dlg->Create(IDD_TABHOLDER,GetParent());

Since the cwlb object is not initialized to anything, I cannot use its
member variables or any of its accessors. In the main frame, I'm not
creating any of the types of objects whose controls I need to be
editing. Instead, I create a generic CDialog pointer, and assign it to
a new TabCtrlHolder. Dereferencing this pointer does not allow me to
access TabCtrlHolder's functions, only those of a generic CDialog.


Don't do that. A "generic" dialog pointer is inadequate.

When you create the new TabCtrlHolder save its address as a member
variable of type TabCtrlHolder*. That's the only way you will be able
to access its methods. Then you will be able to create something like
this...

   m_pTabCtrlHolder->GetPage(1)->AddListString(...);

....where GetPage and AddListString are functions that you would add to
your classes.

--
Scott McPhillips [VC++ MVP]

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