#  Copyright (c) 1990 The Regents of the University of California.
#  Copyright (c) 1994-1996 Sun Microsystems, Inc.
#  See the file "license.terms" for information on usage and redistribution
#  of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
#

=head1 NAME

Tk_GetOption - retrieve an option from the option database

=for category C Programming

=head1 SYNOPSIS

B<#include E<lt>tk.hE<gt>>

Tk_Uid
B<Tk_GetOption>(I<tkwin, name, class>)

=head1 ARGUMENTS

=over 4

=item Tk_Window tkwin (in)

Token for window.

=item char *name (in)

Name of desired option.

=item char *class (in)

Class of desired option.  Null means there is no class for
this option;  do lookup based on name only.

=back

=head1 DESCRIPTION

This procedure is invoked to retrieve an option from the database
associated with I<tkwin>'s main window.  If there is an option
for I<tkwin> that matches the given I<name> or I<class>,
then it is returned in the form of a Tk_Uid.  If multiple options
match I<name> and I<class>, then the highest-priority one
is returned.  If no option matches, then NULL is returned.

B<Tk_GetOption> caches options related to I<tkwin> so that
successive calls for the same I<tkwin> will execute much more
quickly than successive calls for different windows.

=head1 KEYWORDS

class, name, option, retrieve