Rebol 编程/in-window?
外观
< Rebol 编程
IN-WINDOW? window face
如果窗口包含给定面,则返回 true。
IN-WINDOW? 是一个函数值。
- window -- (类型:任何)
- face -- (类型:任何)
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 ]