Since we use C-style casts to grab the pointer from an item id, we can return an invalid item if the control has extra items appended.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@53085 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/listctrl_mac.cpp

@@ -1995,7 +1995,7 @@ wxListCtrl::HitTest(const wxPoint& point, int& flags, long *ptrSubItem) const
         m_dbImpl->GetItemID( (DataBrowserTableViewRowIndex) row, &id );
 
         // TODO: Use GetDataBrowserItemPartBounds to return if we are in icon or label
-        if ( !(GetWindowStyleFlag() & wxLC_VIRTUAL ) )
+        if ( !(GetWindowStyleFlag() & wxLC_VIRTUAL ) && row < GetItemCount() )
         {
             wxMacListCtrlItem* lcItem;
             lcItem = (wxMacListCtrlItem*) id;