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Help buffers provide the same commands as View mode (see View Mode); for instance, <SPC> scrolls forward, and <DEL> or S-<SPC> scrolls backward. A few special commands are also provided:
When a function name, variable name, or face name (see Faces)
appears in the documentation in the help buffer, it is normally an
underlined hyperlink. To view the associated documentation,
move point there and type <RET> (
help-follow), or click on
the hyperlink with mouse-1 or mouse-2. Doing so replaces
the contents of the help buffer; to retrace your steps, type C-c
C-b or l (
help-go-back). While retracing your steps,
you can go forward by using C-c C-f or r
A help buffer can also contain hyperlinks to Info manuals, source
code definitions, and URLs (web pages). The first two are opened in
Emacs, and the third using a web browser via the
command (see Browse-URL).
In a help buffer, <TAB> (
forward-button) moves point
forward to the next hyperlink, while S-<TAB>
backward-button) moves point back to the previous hyperlink.
These commands act cyclically; for instance, typing <TAB> at the
last hyperlink moves back to the first hyperlink.
To view all documentation about any symbol in the text, move point
to the symbol and type C-c C-c (
This shows the documentation for all the meanings of the symbol—as a
variable, as a function, and/or as a face.