CoreFoundation/CFPreferences.h

/*
 * Copyright (c) 2008-2009 Brent Fulgham <bfulgham@gmail.org>.  All rights reserved.
 *
 * This source code is a modified version of the CoreFoundation sources released by Apple Inc. under
 * the terms of the APSL version 2.0 (see below).
 *
 * For information about changes from the original Apple source release can be found by reviewing the
 * source control system for the project at https://sourceforge.net/svn/?group_id=246198.
 *
 * The original license information is as follows:
 * 
 * Copyright (c) 2008 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*	CFPreferences.h
	Copyright (c) 1998-2007, Apple Inc. All rights reserved.
*/

#if !defined(__COREFOUNDATION_CFPREFERENCES__)
#define __COREFOUNDATION_CFPREFERENCES__ 1

#include <CoreFoundation/CFBase.h>
#include <CoreFoundation/CFArray.h>
#include <CoreFoundation/CFString.h>

CF_EXTERN_C_BEGIN

CF_EXPORT
const CFStringRef kCFPreferencesAnyApplication;
CF_EXPORT
const CFStringRef kCFPreferencesCurrentApplication;
CF_EXPORT
const CFStringRef kCFPreferencesAnyHost;
CF_EXPORT
const CFStringRef kCFPreferencesCurrentHost;
CF_EXPORT
const CFStringRef kCFPreferencesAnyUser;
CF_EXPORT
const CFStringRef kCFPreferencesCurrentUser;

/* NOTE: All CFPropertyListRef values returned from
         CFPreferences API should be assumed to be immutable.
*/

/*	The "App" functions search the various sources of defaults that
	apply to the given application, and should never be called with
	kCFPreferencesAnyApplication - only kCFPreferencesCurrentApplication
	or an application's ID (its bundle identifier).
*/

/* Searches the various sources of application defaults to find the
value for the given key. key must not be NULL.  If a value is found,
it returns it; otherwise returns NULL.  Caller must release the
returned value */
CF_EXPORT
CFPropertyListRef CFPreferencesCopyAppValue(CFStringRef key, CFStringRef applicationID);

/* Convenience to interpret a preferences value as a boolean directly.
Returns false if the key doesn't exist, or has an improper format; under
those conditions, keyExistsAndHasValidFormat (if non-NULL) is set to false */
CF_EXPORT
Boolean CFPreferencesGetAppBooleanValue(CFStringRef key, CFStringRef applicationID, Boolean *keyExistsAndHasValidFormat);

/* Convenience to interpret a preferences value as an integer directly.
Returns 0 if the key doesn't exist, or has an improper format; under
those conditions, keyExistsAndHasValidFormat (if non-NULL) is set to false */
CF_EXPORT
CFIndex CFPreferencesGetAppIntegerValue(CFStringRef key, CFStringRef applicationID, Boolean *keyExistsAndHasValidFormat);

/* Sets the given value for the given key in the "normal" place for
application preferences.  key must not be NULL.  If value is NULL,
key is removed instead. */
CF_EXPORT
void CFPreferencesSetAppValue(CFStringRef key, CFPropertyListRef value, CFStringRef applicationID);

/* Adds the preferences for the given suite to the app preferences for
   the specified application.  To write to the suite domain, use
   CFPreferencesSetValue(), below, using the suiteName in place
   of the appName */
CF_EXPORT
void CFPreferencesAddSuitePreferencesToApp(CFStringRef applicationID, CFStringRef suiteID);

CF_EXPORT
void CFPreferencesRemoveSuitePreferencesFromApp(CFStringRef applicationID, CFStringRef suiteID);

/* Writes all changes in all sources of application defaults.
Returns success or failure. */
CF_EXPORT
Boolean CFPreferencesAppSynchronize(CFStringRef applicationID);

/* The primitive get mechanism; all arguments must be non-NULL
(use the constants above for common values).  Only the exact
location specified by app-user-host is searched.  The returned
CFType must be released by the caller when it is finished with it. */
CF_EXPORT
CFPropertyListRef CFPreferencesCopyValue(CFStringRef key, CFStringRef applicationID, CFStringRef userName, CFStringRef hostName);

/* Convenience to fetch multiple keys at once.  Keys in 
keysToFetch that are not present in the returned dictionary
are not present in the domain.  If keysToFetch is NULL, all
keys are fetched. */
CF_EXPORT
CFDictionaryRef CFPreferencesCopyMultiple(CFArrayRef keysToFetch, CFStringRef applicationID, CFStringRef userName, CFStringRef hostName);

/* The primitive set function; all arguments except value must be
non-NULL.  If value is NULL, the given key is removed */
CF_EXPORT
void CFPreferencesSetValue(CFStringRef key, CFPropertyListRef value, CFStringRef applicationID, CFStringRef userName, CFStringRef hostName);

/* Convenience to set multiple values at once.  Behavior is undefined
if a key is in both keysToSet and keysToRemove */
CF_EXPORT
void CFPreferencesSetMultiple(CFDictionaryRef keysToSet, CFArrayRef keysToRemove, CFStringRef applicationID, CFStringRef userName, CFStringRef hostName);

CF_EXPORT
Boolean CFPreferencesSynchronize(CFStringRef applicationID, CFStringRef userName, CFStringRef hostName);

/* Constructs and returns the list of the name of all applications
which have preferences in the scope of the given user and host.
The returned value must be released by the caller; neither argument
may be NULL. */
CF_EXPORT
CFArrayRef CFPreferencesCopyApplicationList(CFStringRef userName, CFStringRef hostName);

/* Constructs and returns the list of all keys set in the given
location.  The returned value must be released by the caller;
all arguments must be non-NULL */
CF_EXPORT
CFArrayRef CFPreferencesCopyKeyList(CFStringRef applicationID, CFStringRef userName, CFStringRef hostName);


CF_EXTERN_C_END

#endif /* ! __COREFOUNDATION_CFPREFERENCES__ */