[Nix-dev] ImageMagick and xwd

[Roni Choudhury]

Glad I could help!

roni

On Tue, Dec 6, 2016, 3:53 AM Eike <eike at eknet.org> wrote:

>
> Hi Roni,
>
> thank you so much! This works perfectly. I didn't know about the import
> command, this is very convenient.
>
> Thanks again and kind regards
> Eike
>
> Roni Choudhury <aichoudh at gmail.com> writes:
>
> > Hi Eike-
> >
> > You have to let *convert* know the image type coming in on stdin:
> >
> >     *xwd -root | convert xwd:- screenshot.jpg*
> >
> > You may also be interested to know about the *import* command, which
> comes
> > with ImageMagick:
> >
> >     *import -window root screenshot.png*
> >
> > That command will take a screenshot and automatically convert to an
> output
> > format based on the file extension you choose.
> >
> > Hope this helps,
> >
> > roni
> >
> > On Tue, Nov 29, 2016 at 6:25 AM Eike <eike at eknet.org> wrote:
> >
> >>
> >> Hello,
> >>
> >> I'm used to do screenshots with xwd and imagemagick like this:
> >>
> >>     xwd -root | convert - screenshot.jpg
> >>
> >> Currently (17.03pre95306.a24728f (Gorilla)) with imagemagick 6.9.6-2 I
> >> cannot convert xwd dumps to jpgs anymore:
> >>
> >>     $ xwd -root | convert - screenshot.jpg
> >>     convert: no decode delegate for this image format `' @
> >> error/constitute.c/ReadImage/504.
> >>     convert: no images defined `screenshot.jpg' @
> >> error/convert.c/ConvertImageCommand/3257.
> >>
> >> I tested with the version of commit fa6c6dae7 (which is 6.9.5-10)
> >> successfully but with the update to 6.9.6-2 (commit 241cd0e5d) it
> >> stopped working. So it looks like it is not supported anymore with
> >> imagemagick 6.9.6?
> >>
> >> I could not find related info doing a quick search on the web. Does
> >> anyone know more about this?
> >>
> >> Thanks and regards
> >> Eike
> >>
> >> --
> >> gpg: AD7AC35E
> >> finger print: 137F BB0B 1639 D25F DC5D E59C B412 C5F5 AD7A C35E
> >> _______________________________________________
> >> nix-dev mailing list
> >> nix-dev at lists.science.uu.nl
> >> http://lists.science.uu.nl/mailman/listinfo/nix-dev
> >>
>
>
> --
> gpg: AD7AC35E
> finger print: 137F BB0B 1639 D25F DC5D E59C B412 C5F5 AD7A C35E
>
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