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Check if the z-index returns an empty value safely.

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Jingtao Xu 2023-06-14 16:55:22 +08:00
parent 04d6df5d0b
commit 700169d35a
1 changed files with 2 additions and 1 deletions
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3
source/clog-gui.lisp
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@ -559,7 +559,8 @@ The on-window-change clog-obj received is the new window"))
(maphash (lambda (key value)
(declare (ignore key))
(setf new-order (z-index value))
(when (>= new-order order)
(when (and new-order
(>= new-order order))
(setf order new-order)
(setf obj value)))
(windows app))))