window1
  "window"
  index: 0
  state: active enabled resizable sensitive showing visible
  toolkit: gtk
  window-type: normal
  <AtkComponent>
  layer: window
  alpha: 1
  calendar1
    "calendar"
    parent: window1
    index: 0
    state: enabled focusable focused sensitive showing visible
    toolkit: gtk
    <AtkComponent>
    layer: widget
    alpha: 1