As his question
http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg32892.html
was never answered but his patch works, here it is again with
GUI support (FormMathsDeco) added.
Martin
2002-03-03 Martin Vermeer <[EMAIL PROTECTED]>
* FormMathsDeco.C:
* deco.xbm: GUI support for \under and \over leftrightarrow
2002-02-13 Otto Tronarp <[EMAIL PROTECTED]>
* math_support.C:
* math_hash.C:
* math_decorationinset.C: Added \underleftrightarrow and
\overleftrightarrow
msg33851/pgp00000.pgp
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