Re: CListCtrl size at runtime

From:
"Tom Serface" <tom.nospam@camaswood.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 20 Nov 2008 09:14:17 -0800
Message-ID:
<D280C9C7-F214-41A4-B815-3B19BBB94154@microsoft.com>
Great idea. That'sa good visual.

Tom

"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:fj2bi45eth60qlqbmkokvro25kjdagge7n@4ax.com...

See below...
On Wed, 19 Nov 2008 22:58:20 -0800, "Tom Serface"
<tom.nospam@camaswood.com> wrote:

I think, with a listbox, you can do something a simple as:

 // Set the horizontal scroll width
 int oldwidth = m_ListBox.GetHorizontalExtent();
 CDC* pDC = m_ListBox.GetWindowDC();
 if (pDC) {
      int newwidth = pDC->GetTextExtent(msg, _tcslen(msg)).cx;
      m_ListBox.ReleaseDC(pDC);
      if (newwidth > oldwidth)
           m_ListBox.SetHorizontalExtent(newwidth);
 }
  // Delete old entries
  if (m_ListBox.GetCount() >= 300)
       m_ListBox.DeleteString(0);
   // Add the new string at the end
   m_ListBox.AddString(msg);
}

****
That's pretty much the code I use. Note that for the case where I keep
the "startup log",
what I do is DeleteString(n) where n is the item that is marked as the
first candidate.
Also, if I delete elements, the first time I actually insert an element at
position n
which tells me how many items I've deleted, and increment n by 1, so it
displays
============Deleted 26 entries================
to show that the log is no longer contiguous. Each time I delete an
element, I increment
the counter (since it is owner-draw, it will display the correct amount;
GetItemRect/InvalidateRect handles this if the element is visible)
*****

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