Screens
  aspect ratio, 20
  autoscroll, 74
  attributes, 46
  color selection, 47, 65
  CON: on, 20
  coordinate reference, 46
  data structures, 39
  defined, 27
  display modes, 20, 37
  DisplayBeep(), 75
  Examples
    cloning a public screen, 59
    double buffered screen, 67
    dual playfield screen, 70
    finding the Workbench screen, 51
    opening a new look screen, 42
    opening screens compatibly, 44
    using a public screen, 56
  font, 59
  from window, 105
  hide title, 92
  menu snap, 74
  mode for alert, 220
  MoveScreen(), 74
  multiple screens, 38
  positioning, 40
  ShowTitle(), 65
  tag items, 46
  title bar, 49, 65, 75
  using layers with, 65
  Workbench, 75