This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)


is a notebook option which determines the overall opacity of a displayed window.
  • The settings for WindowOpacity run 0 to 1, with 0 representing perfect transparency.
  • WindowOpacity affects all elements of a window, not just its content area.
  • WindowOpacity may not be available on some computer systems, or with some window environments.
New in 6