---
name: "mplist_key"
section: "3m17n"
platform: "linux"
package: "m17n-docs"
version: "1.8.4-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/mplist_key"
---

# mplist\_key(3m17n)

## NAME

mplist\_key -

## SYNOPSIS

MSymbol **mplist\_key** (**MPlist** \* *plist*)

## DESCRIPTION

Return the key of the first property in a property list. The **mplist\_key()** function returns the key of the first property in property list **plist**. If the length of **plist** is zero, it returns `Mnil`. \

## COPYRIGHT

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\>.