gtk:widget-show (widget)

widget -- a gtk:widget object

Flags a widget to be displayed. Any widget that is not shown will not appear on the screen. Remember that you have to show the widgets containing a widget, in addition to the widget itself, before it will appear onscreen. When a toplevel widget is shown, it is immediately realized and mapped. Other shown widgets are realized and mapped when their toplevel widget is realized and mapped. This function is deprecated since 4.10. Use the gtk:widget-visible function instead.