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From: Yuri Khan <yurivkhan@gmail.com>
To: nljlistbox2@gmail.com
Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
Subject: Re: Pop up context menu (at point) with <menu> key rather than mouse
Date: Sun, 11 Nov 2018 00:27:17 +0700	[thread overview]
Message-ID: <CAP_d_8WOPawTOPG9n4ybqrZ779KpFk9XV7qRVe3m3fs4-6u4JA@mail.gmail.com> (raw)
In-Reply-To: <87bm6wluxf.fsf@moondust.localdomain>

On Sun, Nov 11, 2018 at 12:11 AM N. Jackson <nljlistbox2@gmail.com> wrote:

> >   (global-set-key [C-down-mouse-3]
> >     `(menu-item ,(purecopy "Menu Bar") ignore
> >       :filter (lambda (_)
> >               (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
> >                   (mouse-menu-bar-map)
> >                 (mouse-menu-major-mode-map)))))
>
> Hmm... where is `menu-item' defined?

See the ‘`’ character? That indicates that the following is a quoted
list (except that the part prefixed with ‘,’ is not quoted. Anyway,
that is a list whose first element is the symbol 'menu-item, and that
list is passed to ‘global-set-key’.

So you want to go look what ‘global-set-key’ does with that. You might
know, or learn from the source, that ‘global-set-key’ is a wrapper
function around ‘define-key’. Then, C-h f define-key tells you its
last argument can take a number of forms, none of which seem to match
a list '(menu-item …), except possibly this:

    DEF is anything that can be a key’s definition:
    […]
     or an extended menu item definition.
     (See info node ‘(elisp)Extended Menu Items’.)

So you dive into that info node, and sure enough, it explains that an
extended menu item is a list starting with 'menu-item.



  reply	other threads:[~2018-11-10 17:27 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-09 19:19 Pop up context menu (at point) with <menu> key rather than mouse N. Jackson
2018-11-09 19:29 ` Eli Zaretskii
2018-11-10 17:11   ` N. Jackson
2018-11-10 17:27     ` Yuri Khan [this message]
2018-11-10 17:50       ` N. Jackson
2018-11-10 18:00     ` Eli Zaretskii

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