Variable: completion-list-inhibit-functions
completion-list-inhibit-functions is a variable defined in
minibuffer.el.gz.
Value
nil
Documentation
Abnormal hook for inhibiting display of the *Completions* buffer.
If any of these functions returns non-nil, it inhibits the display of *Completions*.
Source Code
;; Defined in /usr/src/emacs/lisp/minibuffer.el.gz
(defvar completion-list-inhibit-functions nil
"Abnormal hook for inhibiting display of the *Completions* buffer.
If any of these functions returns non-nil, it inhibits the display
of *Completions*.")