Rebol Programming/viewed?

< Rebol Programming

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USAGE:

VIEWED? face

DESCRIPTION:

Returns TRUE if face is displayed.

VIEWED? is a function value.

ARGUMENTS

face -- (Type: object)

SOURCE CODE

viewed?: func [
    "Returns TRUE if face is displayed." 
    face [object!]
][
    found? find system/view/screen-face/pane find-window face
]

Retrieved from "https://en.wikibooks.org/wiki/Rebol_Programming/viewed%3F"