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Date:      Thu, 27 Feb 2003 13:17:50 -0600
From:      Dan Nelson <dnelson@allantgroup.com>
To:        freebsd-questions@FreeBSD.ORG
Subject:   Re: determining active console
Message-ID:  <20030227191750.GB6748@dan.emsphone.com>
In-Reply-To: <20030227165828.GA3638@gicco.homeip.net>
References:  <20030227113959.GB610@gicco.homeip.net> <20030227134837.GD1297@gothmog.gr> <20030227165828.GA3638@gicco.homeip.net>

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In the last episode (Feb 27), Hanspeter Roth said:
> On Feb 27 at 15:48, Giorgos Keramidas spoke:
> > On 2003-02-27 12:39, Hanspeter Roth <hampi@rootshell.be> wrote:
> > > Hello,
> > > how can I determine the active console?
> > 
> > Use the tty(1) command:
>
> But I'd like to know the console that has got the keyboard focus by
> switching with <ctrl>-<alt>-<fN>.

Use the undocumented VT_GETACTIVE ioctl on stdin (or anything else
connected to a vty) which will return the active vty number.  You can
also disable vty switching, programmatically switch to a particular
vty, and do other neat stuff.  Take a look at
/usr/src/usr.sbin/vidcontrolfor usage examples and
/usr/src/sys/dev/syscons/syscons.c for all the possible ioctls.

-- 
	Dan Nelson
	dnelson@allantgroup.com

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