anchor.diff:  end;
   
   { VERTEX }
  -function vcgen_stroke.vertex;
  +function vcgen_stroke.vertex(x ,y : double_ptr ) : unsigned;
   var
    c : point_type_ptr;
   
  
positive.code: end;
  
  { ADD_VERTEX }
  procedure vcgen_stroke.add_vertex;
  var
   vd : vertex_dist;
  
  
negative.code: end;
  
  { REWIND }
  procedure vcgen_stroke.rewind(path_id : unsigned );
  begin
   if m_status = initial then
    begin
  