Re: Getting view in the document class

From:

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

Newsgroups:

microsoft.public.vc.mfc

Date:

Wed, 27 Jun 2007 16:34:58 -0700

Message-ID:

<11F82CA7-7D25-40BB-9FC6-2990BBB7CE5D@microsoft.com>

What you did here works so long as you know you only have one view. You can
always access the document from the view or you could send a message to the
views using UpdateAllViews() and have the View update the document
information for you.

Tom

"Eric Lilja" <mindcoolerremoveme@gmail.com> wrote in message
news:%23%23gS1ERuHHA.1496@TK2MSFTNGP06.phx.gbl...

I'm writing a simpliefied "Game of Life" to teach myself MFC and get
experience in using MSVC++ 8.0. Anyway, it's SDI/DocView-type program. The
document class creates a tile matrix that represents the game board. Each
tile must know about the view where it's located. I'm doing this in my
OnNewDocument:

BOOL
LifeDocument::OnNewDocument()
{
   VERIFY(CDocument::OnNewDocument());

   static POSITION pos = GetFirstViewPosition();
   /* GetNextView() take a non-const reference to a POSITION so we can't
use nested calls... */
   static MyView *view = dynamic_cast<MyView *>(GetNextView(pos));

   ASSERT(view);

   tile_matrix_ = new TileMatrix(view, num_rows, num_cols);

   return TRUE;
}

My question is simply: Is this the proper way to obtain a pointer to view
from inside the document class? As I said above, this is an SDI
application so there will always be only one view at any given time.

- Eric