.\" Copyright (C) 2001 Information-technology Promotion Agency (IPA)
.\" Copyright (C) 2001-2011
.\"   National Institute of Advanced Industrial Science and Technology (AIST)
.\" This file is part of the m17n library documentation.
.\" Permission is granted to copy, distribute and/or modify this document
.\" under the terms of the GNU Free Documentation License, Version 1.2 or
.\" any later version published by the Free Software Foundation; with no
.\" Invariant Section, no Front-Cover Texts,
.\" and no Back-Cover Texts.  A copy of the license is included in the
.\" appendix entitled "GNU Free Documentation License".
.TH "mplist_key" 3m17n "Mon Sep 25 2023" "Version 1.8.4" "The m17n Library" \" -*- nroff -*-
.ad l
.nh
.SH NAME
mplist_key \- 


.SH SYNOPSIS
MSymbol
\fBmplist_key\fP (\fBMPlist\fP *
\fIplist\fP)


.SH DESCRIPTION
.PP
Return the key of the first property in a property list\&. The
.ft B
mplist_key()
.ft R
function returns the key of the first property in property list
.ft B
plist\fP\&. If the length of
.ft B
plist
.ft R
is zero, it returns
.ft C
Mnil\fP\&. 
.br
 
.SH COPYRIGHT
Copyright (C) 2001 Information\-technology Promotion Agency (IPA)
.br
Copyright (C) 2001\-2011 National Institute of Advanced Industrial Science and Technology (AIST)
.br
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>.