1. minor fixes in wxDynLib

2. added more symbols to winundef.h
3. fixed wxTextFile::IsOpen() - now it does what you'd suppose
4. listctrl now updates the item image when it changes
5. file dlg checks for an error and gives a message about it (debug only)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2973 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/listctrl.cpp

@@ -551,7 +551,14 @@ bool wxListCtrl::SetItem(wxListItem& info)
     LV_ITEM item;
     wxConvertToMSWListItem(this, info, item);
     item.cchTextMax = 0;
-    return (ListView_SetItem(GetHwnd(), &item) != 0);
+    bool ok = ListView_SetItem(GetHwnd(), &item) != 0;
+    if ( ok && (info.m_mask & wxLIST_MASK_IMAGE) )
+    {
+        // make the change visible
+        ListView_Update(GetHwnd(), item.iItem);
+    }
+
+    return ok;
 }
 
 long wxListCtrl::SetItem(long index, int col, const wxString& label, int imageId)