Variable: icomplete-in-buffer
icomplete-in-buffer is a customizable variable defined in
icomplete.el.gz.
Value
nil
Documentation
If non-nil, use Icomplete when completing in buffers other than minibuffer.
This affects commands like completion-in-region, but not commands
that use their own completions setup.
Probably introduced at or before Emacs version 30.1.
Source Code
;; Defined in /usr/src/emacs/lisp/icomplete.el.gz
(defcustom icomplete-in-buffer nil
"If non-nil, use Icomplete when completing in buffers other than minibuffer.
This affects commands like `completion-in-region', but not commands
that use their own completions setup."
:type 'boolean)