Rebol Programming/in-window?

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USAGE:[edit | edit source]

IN-WINDOW? window face 

DESCRIPTION:[edit | edit source]

Return true if a window contains a given face.

IN-WINDOW? is a function value.

ARGUMENTS:[edit | edit source]

  • window -- (Type: any)
  • face -- (Type: any)

SOURCE CODE[edit | edit source]

in-window?: func [
    "Return true if a window contains a given face." 
    window face
][
    if face = window [return true] 
    if none? face/parent-face [return false] 
    in-window? window face/parent-face
]