Variable: help-window-point-marker
help-window-point-marker is a variable defined in help.el.gz.
Value
#<marker in no buffer>
Documentation
Marker to override default window-point in help windows.
Probably introduced at or before Emacs version 23.1.
Source Code
;; Defined in /usr/src/emacs/lisp/help.el.gz
;; `help-window-point-marker' is a marker you can move to a valid
;; position of the buffer shown in the help window in order to override
;; the standard positioning mechanism (`point-min') chosen by
;; `with-output-to-temp-buffer' and `with-temp-buffer-window'.
;; `with-help-window' has this point nowhere before exiting. Currently
;; used by `view-lossage' to assert that the last keystrokes are always
;; visible.
(defvar help-window-point-marker (make-marker)
"Marker to override default `window-point' in help windows.")