window1
  "window"
  index: 0
  state: enabled resizable sensitive showing visible
  toolkit: gtk
  <AtkComponent>
  layer: window
  alpha: 1
  button1
    "push button"
    parent: window1
    index: 0
    name: Hello World!
    state: enabled focusable sensitive showing visible
    toolkit: gtk
    <AtkComponent>
    layer: widget
    alpha: 1
    <AtkImage>
    image size: -1 x -1
    image description: (null)
    <AtkAction>
    action 0 name: click
    <AtkHyperlinkImpl>
    anchors: http://www.gtk.org