Function: minibuffer-window
minibuffer-window is a function defined in window.c.
Signature
(minibuffer-window &optional FRAME)
Documentation
Return the minibuffer window for frame FRAME.
If FRAME is omitted or nil, it defaults to the selected frame.
Probably introduced at or before Emacs version 18.
Source Code
// Defined in /usr/src/emacs/src/window.c
{
return FRAME_MINIBUF_WINDOW (decode_live_frame (frame));
}