Variable: help-form

help-form is a variable defined in keyboard.c.

Value

nil

Documentation

Form to execute when character help-char is read.

If the form returns a string, that string is displayed. If help-form is nil, the help char is not recognized.

Probably introduced at or before Emacs version 17.

Source Code

// Defined in /usr/src/emacs/src/keyboard.c
  DEFVAR_LISP ("help-form", Vhelp_form,
	       doc: /* Form to execute when character `help-char' is read.
If the form returns a string, that string is displayed.
If `help-form' is nil, the help char is not recognized.  */);