Variable: completion-preview-mode-hook
completion-preview-mode-hook is a customizable variable defined in
completion-preview.el.gz.
Value
(completion-preview-mode--set-explicitly(var)/completion-preview-mode--set-explicitly(fun))
Documentation
Hook run after entering or leaving completion-preview-mode(var)/completion-preview-mode(fun).
No problems result if this variable is not bound.
add-hook automatically binds it. (This is true for all hook variables.)
Source Code
;; Defined in /usr/src/emacs/lisp/completion-preview.el.gz