Hi Benoit thanks for you help i share the link the example https://drive.google.com/file/d/0B2gI4jYOofp0WmQtRzFhcDRhcGs/view?usp=sharing for the moment i work with svn_rev6874 svn_rev6875 and 6876 no working for my with gb.qt4 waiting for your help Herberth Guzman https://plus.google.com/u/0/105457212371116775367/posts