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From: Chris McGee <newton688@gmail.com>
In-Reply-To: <762ba12fb04afe6b6793ea4500590b4b@felloff.net>
Date: Fri, 25 Nov 2016 23:23:04 -0500
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Message-Id: <2C6DF5C3-ED25-409B-B835-A07E4FCEBC20@gmail.com>
References: <762ba12fb04afe6b6793ea4500590b4b@felloff.net>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] How to take a portion of a screenshot
Topicbox-Message-UUID: af3c7e9a-ead9-11e9-9d60-3106f5b1d025

Thanks Skip, Cinap,

This command seems to be working quite nicely (except for the memory =
allocation problem in gif(1) for larger recordings):

for (i in `{seq -w 1 25}) { sleep 0.01; cat /dev/screen > =
/tmp/screen-$i.img }; togif -l -1 -d 300 /tmp/screen-*.img > =
/tmp/recording.gif; rm /tmp/screen-*.img; echo Done

It would be easy enough to introduce a crop to restrict the recording to =
a particular window or area of the screen.

Is there a way to capture the current mouse position without blocking to =
wait on an event from /dev/mouse? I was thinking that it would be =
interesting to crop around the current mouse position.

Chris


> On Nov 24, 2016, at 3:56 AM, cinap_lenrek@felloff.net wrote:
>=20
> rc variables are lists, and $#var evalulates to the
> length of the list... you can use that to make counters
> by concatenating elements to a list:
>=20
> term% a=3D() while(! ~ $#a 13){echo $#a $a; a=3D(1 $a);}
> 0
> 1 1
> 2 1 1
> 3 1 1 1
> 4 1 1 1 1
> 5 1 1 1 1 1
> 6 1 1 1 1 1 1
> 7 1 1 1 1 1 1 1
> 8 1 1 1 1 1 1 1 1
> 9 1 1 1 1 1 1 1 1 1
> 10 1 1 1 1 1 1 1 1 1 1
> 11 1 1 1 1 1 1 1 1 1 1 1
> 12 1 1 1 1 1 1 1 1 1 1 1 1
>=20
> --
> cinap
>=20