<?xml version="1.0"?> <glade-interface> <!-- interface-requires gtk+ 2.16 --> <!-- interface-naming-policy project-wide --> <widget class="GtkWindow" id="main_window"> <signal name="delete_event" handler="on_main_window_delete_event"/> <child> <widget class="GtkHBox" id="hbox_graph"> <property name="width_request">400</property> <property name="height_request">400</property> <property name="visible">True</property> <child> <placeholder/> </child> </widget> </child> </widget> </glade-interface>