From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gerd Hoffmann <kraxel@redhat.com>
Subject: Re: [F.A.Q.] the advantages of a shared tool/kernel
 Git repository, tools/perf/ and tools/kvm/
Date: Thu, 10 Nov 2011 09:39:00 +0100
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Cc: Pekka Enberg <penberg@kernel.org>, Theodore Tso <tytso@mit.edu>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	"kvm@vger.kernel.org list" <kvm@vger.kernel.org>,
	qemu-devel Developers <qemu-devel@nongnu.org>,
	Vince Weaver <vince@deater.net>,
	"linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Blue Swirl <blauwirbel@gmail.com>,
	Alexander Graf <agraf@suse.de>, Avi Kivity <avi@redhat.com>,
	=?ISO-8859-1?Q?Am=E9rico_Wang?= <xiyou.wangcong@gmail.com>,
	Ingo Molnar <mingo@elte.hu>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>
To: Jim Paris <jim@jtan.com>
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  Hi,

>>> As far I know it is pretty much impossible to figure the
>>> foreground/background colors of the terminal you are running on.  You
>>
>> Glad to hear that, I thought I hadn't researched that much (I did). Hope
>> somebody appears and tell us how it is done :-)
> 
> In xterm, '\e]10;?\e\\' and '\e]11;?\e\\' will report the colors, e.g.:
> 
> #!/bin/bash
>   read -s -r -d \\ -p `printf '\e]10;?\e\\'` -t 1 fg
>   [ $? -ne 0 ] && fg="no response"
>   echo "foreground: $fg" | cat -v
>   read -s -r -d \\ -p `printf '\e]11;?\e\\'` -t 1 bg
>   [ $? -ne 0 ] && bg="no response"
>   echo "background: $bg" | cat -v

Works fine in xterm.  Neither gnome-terminal (i.e. vte widget) nor
konsole support this though.

cheers,
  Gerd