From: Alexis <flexibeast@gmail.com>
To: Jim Newton <jimka.issy@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: can someone help me with the image elisp API
Date: Tue, 08 Dec 2015 18:23:52 +1100 [thread overview]
Message-ID: <87mvtlqu7r.fsf@gmail.com> (raw)
In-Reply-To: <72e35ecc-e4bf-4d32-bc7f-e47c87e758e4@googlegroups.com>
Jim Newton <jimka.issy@gmail.com> writes:
> I've opened an image (a .png) file in an emacs buffer. I'd like
> to be able to click in the image with the RMB (or any good mouse
> event), and somehow relate the point the user clicked to the
> coordinates in the image.
>
> For example, this elisp function gets the x-y position. Suppose
> it is (609 . 41) I want to know if that is in the box within the
> image coordinates
> (( 447.32 199.28) ( 449.7426 199.9871))
Perhaps the :map property of the image descriptor might be of use?
https://www.gnu.org/software/emacs/manual/html_node/elisp/Image-Descriptors.html
Alexis.
next prev parent reply other threads:[~2015-12-08 7:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-07 15:25 can someone help me with the image elisp API Jim Newton
2015-12-08 7:23 ` Alexis [this message]
2015-12-08 9:30 ` Andy Moreton
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