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#!/usr/bin/env booiimport Systemimport Gtk from "gtk-sharp"Application.Init()myLabel as LabelmyEntry as Entrydef onClicked():	myLabel.Text = myEntry.Text	myWindow = Window("Hello world")myWindow.DeleteEvent += Application.Quit	myBox = VBox()myWindow.Add(myBox)myLabel = Label("Press the button")myEntry = Entry()myButton = Button("Click!")myButton.Clicked += onClicked	myBox.Add(myLabel)myBox.Add(myEntry)myBox.Add(myButton)myWindow.ShowAll()Application.Run()