RosettaCodeData/Task/Hello-world-Graphical/Sidef/hello-world-graphical-2.sidef at main - mirror/RosettaCodeData - Foregejo Aurora

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 var gtk2 = require('Gtk2') -> init
 var window = %O<Gtk2::Window>.new
 var label  = %O<Gtk2::Label>.new('Goodbye, World!')
 window.set_title('Goodbye, World!')
 window.signal_connect(destroy => { gtk2.main_quit })
 window.add(label)
 window.show_all
 gtk2.main