Hi Benoit thanks for you help i share the link the example attach example not working gb.qt svn_rev6875 onwards https://drive.google.com/file/d/0B2gI4jYOofp0WmQtRzFhcDRhcGs/view?usp=sharing waiting for your help Regards Herberth Guzman https://plus.google.com/u/0/105457212371116775367/posts