public void dbug_DumpRootDrawingMsg(List<dbugLayoutMsg> outputlist)
{
outputlist.Add(new dbugLayoutMsg(null as RenderElement, "Asc n= " + dbug_rootDrawingMsg.Count));
LinkedListNode<dbugLayoutMsg> u_node = dbug_rootDrawingMsg.First;
while (u_node != null)
{
outputlist.Add(u_node.Value);
u_node = u_node.Next;
}
}