Info: Console Vs GUI difference?

["T.V. Raman" <tv.raman.tv@gmail.com>]

I understand better now.  But I cannot but advice it because
there are many parts of emacs -- and emacs packages -- that
already use signal to display useful information to the user.
Yes, that is clearly incorrect, but that  is what packages are
doing, so I have no option but to speak them. I'd be happy to
hear about an alternative -- note that I suspect
command-error-function might run into the same issue -- perhaps
differently.


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On 11/1/13, Eli Zaretskii <eliz@gnu.org> wrote:
>> Date: Fri, 1 Nov 2013 13:24:47 -0700
>> From: "T.V. Raman" <tv.raman.tv@gmail.com>
>>
>> With all due respect, I believe you're  wrong here -- that's not
>> the problem.  And it works correctly at the console.  When
>> running under X, the signal once raised, gets raised repeatedly
>> after every user command, and the backtrace shows that it's
>> coming from redisplay.
>
> It comes from redisplay because redisplay recomputes the menu and
> tool-bar items.  As the tool bar is not displayed in a TTY session,
> you don't get signals then.
>
> The root cause is still that 'signal' is being advised in a way that
> exposes it to the user.
>