class WindowActions {
    window: Window
    function compact(self: WindowActions, event: Event): Unit {
        self.window.resize(900, 600)
    }
    function wide(self: WindowActions, event: Event): Unit {
        self.window.resize(1120, 720)
    }
}
class WindowBand: RectBlock {
    function measure(self: WindowBand, mount: Mount, constraints: Constraints): MeasureResult {
        return MeasureResult(constraints.maxWidth, 32)
    }
}
window = ui.window()
actions = WindowActions(window)
band = WindowBand(80, 32, 0, "#237A45")
compact = Button("紧凑窗口 900 × 600")
wide = Button("宽窗口 1120 × 720")
compactConnection = compact.on("click", actions.compact)
wideConnection = wide.on("click", actions.wide)
page = Page()
page.render(Column(24, 16, TextBlock("代码与 GUI 操作同一个受管窗口对象"), band, compact, wide))
page.open(window)
window.setTitle("Endor Window")
window.resize(1120, 720)