Variable: minibuffer-auto-raise
minibuffer-auto-raise is a customizable variable defined in minibuf.c.
Value
nil
Documentation
Non-nil means entering the minibuffer raises the minibuffer's frame.
Some uses of the echo area also raise that frame (since they use it too).
Probably introduced at or before Emacs version 19.23.
Source Code
// Defined in /usr/src/emacs/src/minibuf.c
DEFVAR_BOOL ("minibuffer-auto-raise", minibuffer_auto_raise,
doc: /* Non-nil means entering the minibuffer raises the minibuffer's frame.
Some uses of the echo area also raise that frame (since they use it too). */);