ido-minibuffer-setup-hook

ido-minibuffer-setup-hook is a variable defined in `ido.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
Ido-specific customization of minibuffer setup.

This hook is run during minibuffer setup if Ido is active.
It is intended for use in customizing Ido for interoperation
with other packages. For instance:

(add-hook 'ido-minibuffer-setup-hook
(lambda () (setq-local max-mini-window-height 3)))

will constrain Emacs to a maximum minibuffer height of 3 lines when
Ido is running. Copied from `icomplete-minibuffer-setup-hook'.

You can customize this variable.