GtkTextIter end;
         gtk_text_buffer_get_end_iter(text_buffer,&end );
         gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
         GtkTextIter end;
         gtk_text_buffer_get_end_iter(text_buffer,&end );
         gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);