Variable: tooltip-mode-hook
tooltip-mode-hook is a customizable variable defined in tooltip.el.gz.
Value
nil
Documentation
Hook run after entering or leaving tooltip-mode(var)/tooltip-mode(fun).
No problems result if this variable is not bound.
add-hook automatically binds it. (This is true for all hook variables.)
Source Code
;; Defined in /usr/src/emacs/lisp/tooltip.el.gz