CListCtrl: How to maintain scroll position?

I've done that in the past. IIRC, the trick consisted in:

int topIndex= m_List.GetTopIndex();
RenewContents();
m_List.EnsureVisible(m_List.GetItemCount() - 1); // Scroll down to the bottom
m_List.EnsureVisible(topIndex);// scroll back up just enough to show said item on top