From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
From: "Douglas A. Gwyn" <gwyn@arl.army.mil>
Message-ID: <3AE998CA.21EF83A2@arl.army.mil>
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References: <20010427134212.689F8199ED@mail.cse.psu.edu>
Subject: Re: [9fans] oneko for rio
Date: Fri, 27 Apr 2001 16:32:33 +0000
Topicbox-Message-UUID: 9573b178-eac9-11e9-9e20-41e7f4b1d025

rob pike wrote:
> The mouse position is always in absolute coordinates unless
> the user program does extra work.

As you can tell I haven't yet tried graphics programming
on Plan 9, apart from the patches to "vt" and "sam" where
somebody else had already done the hard part.

I suppose that window coordinates must also be absolute;
presumably in order to avoid having to intercept data and
add offsets.  This fortunately simplifies the subject task.
The only thing missing seems to be writability of /dev/screen.