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From: Drew Adams <drew.adams@oracle.com>
To: Grant Rettke <gcr@wisdomandwonder.com>,
	Emacs Help <help-gnu-emacs@gnu.org>
Subject: RE: How to evaluate a function when a defcustom variable is either set or saved?
Date: Tue, 14 Jun 2016 21:39:17 -0700 (PDT)	[thread overview]
Message-ID: <56434747-d240-4ef9-9634-6e2fb264d0bb@default> (raw)
In-Reply-To: <CAAjq1mfHhjLiyACqXbRGOkBAkU0cTqCMYA_Ti6b_D77nbQ=ySA@mail.gmail.com>


> After the set or save occurs, I would like to evaluate a function.
> The goal of the function is to calculate some runtime values that
> need to be re-calculated every time that the variable is changed.

If you mean every time it is changed using the Customize UI or equivalent
(`custom*' functions), then just use a :set (and possibly an :initialize)
keyword in your defcustom.

See the Elisp  manual, node `Variable Definitions',

http://www.gnu.org/software/emacs/manual/html_node/elisp/Variable-Definitions.html



  reply	other threads:[~2016-06-15  4:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-15  1:13 How to evaluate a function when a defcustom variable is either set or saved? Grant Rettke
2016-06-15  4:39 ` Drew Adams [this message]
2016-06-15 17:40   ` Grant Rettke

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