Variable: max-mini-window-height
max-mini-window-height is a customizable variable defined in xdisp.c.
Value
0.25
Documentation
Maximum height for resizing mini-windows (the minibuffer and the echo area).
If a float, it specifies the maximum height in units of the mini-window frame's height. If an integer, it specifies the maximum height in units of the mini-window frame's default font's height.
This variable was added, or its default value changed, in Emacs 23.1.
Probably introduced at or before Emacs version 21.1.
Source Code
// Defined in /usr/src/emacs/src/xdisp.c
DEFVAR_LISP ("max-mini-window-height", Vmax_mini_window_height,
doc: /* Maximum height for resizing mini-windows (the minibuffer and the echo area).
If a float, it specifies the maximum height in units of the
mini-window frame's height.
If an integer, it specifies the maximum height in units of the
mini-window frame's default font's height. */);