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From: Stefan Monnier <monnier@iro.umontreal.ca>
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Subject: Re: How do I find out what minor modes are in effect?
Date: Wed, 11 Apr 2012 14:09:22 -0400
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> I'm writing a function that needs to change the major mode to do its
> stuff properly.  That can turn off minor modes too.  The obvious
> polite thing to do is turn them all back on when I'm done.

FWIW, you might want to M-x report-emacs-bug and request such
a functionality or provide a patch that implements such a thing.

There are several major modes which need to do that (picture-mode and
image-mode come to mind, I'm sure there are more).


        Stefan