mtext_property_key -

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free
       Documentation License <http://www.gnu.org/licenses/fdl.html>.

Version 1.8.4                                    Mon Sep 25 2023                       mtext_property_key(3m17n)

       Return the key of a text property. The mtext_property_key() function returns the key (symbol) of text
       property prop.

       mtext_property_key -

       MSymbol mtext_property_key (MTextProperty * prop)