prop_object.3 revision 1.4
$NetBSD: prop_object.3,v 1.4 2006/08/21 04:13:28 thorpej Exp $

Copyright (c) 2006 The NetBSD Foundation, Inc.
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.Dd April 22, 2006 .Dt PROP_OBJECT 3 .Os .Sh NAME .Nm prop_object , .Nm prop_object_retain , .Nm prop_object_release , .Nm prop_object_type , .Nm prop_object_equals , .Nm prop_object_iterator_next , .Nm prop_object_iterator_reset , .Nm prop_object_iterator_release .Nd general property container object functions .Sh LIBRARY .Lb libprop .Sh SYNOPSIS n prop/proplib.h
.Ft void .Fn prop_object_retain "prop_object_t obj" .Ft void .Fn prop_object_release "prop_object_t obj"
.Ft prop_type_t .Fn prop_object_type "prop_object_t obj" .Ft boolean_t .Fn prop_object_equals "prop_object_t obj1" "prop_object_t obj2"
.Ft prop_object_t .Fn prop_object_iterator_next "prop_object_iterator_t iter" .Ft void .Fn prop_object_iterator_reset "prop_object_iterator_t iter" .Ft void .Fn prop_object_iterator_release "prop_object_iterator_t iter" .Sh DESCRIPTION The .Nm prop_object family of functions operate on all property container object types. l -tag -width "" t Fn prop_object_retain "prop_object_t obj" Increment the reference count on an object. t Fn prop_object_release "prop_object_t obj" Decrement the reference count on an object. If the last reference is dropped, the object is freed. t Fn prop_object_type "prop_object_t obj" Determine the type of the object. Objects are one of the following types:

p l -tag -width "PROP_TYPE_DICT_KEYSYM" -compact t Dv PROP_TYPE_BOOL Boolean value

q prop_bool_t t Dv PROP_TYPE_NUMBER Number

q prop_number_t t Dv PROP_TYPE_STRING String

q prop_string_t t Dv PROP_TYPE_DATA Opaque data

q prop_data_t t Dv PROP_TYPE_ARRAY Array

q prop_array_t t Dv PROP_TYPE_DICTIONARY Dictionary

q prop_dictionary_t t Dv PROP_TYPE_DICT_KEYSYM Dictionary key symbol

q prop_dictionary_keysym_t .El

p If .Fa obj is .Dv NULL , then .Dv PROP_TYPE_UNKNOWN is returned. t Fn prop_object_equals "prop_object_t obj1" "prop_object_t obj2" Returns .Dv TRUE if the two objects are of the same type and are equivalent. t Fn prop_object_iterator_next "prop_object_iterator_t iter" Return the next object in the collection

q array or dictionary being iterated by the iterator .Fa iter . If there are no more objects in the collection, .Dv NULL is returned. t Fn prop_object_iterator_reset "prop_object_iterator_t iter" Reset the iterator to the first object in the collection being iterated by the iterator .Fa iter . t Fn prop_object_iterator_release "prop_object_iterator_t iter" Release the iterator .Fa iter . .El .Sh SEE ALSO .Xr prop_array 3 , .Xr prop_bool 3 , .Xr prop_data 3 , .Xr prop_dictionary 3 , .Xr prop_number 3 , .Xr prop_string 3 , .Xr proplib 3 .Sh HISTORY The .Nm proplib property container object library first appeared in .Nx 4.0 .