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/* Interface for NSNotification and NSNotificationCenter for GNUStep
Copyright (C) 1996 Free Software Foundation, Inc.
Written by: Andrew Kachites McCallum <mccallum@gnu.ai.mit.edu>
Created: March 1996
This file is part of the GNUstep Base Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __NSNotification_h_GNUSTEP_BASE_INCLUDE
#define __NSNotification_h_GNUSTEP_BASE_INCLUDE
#include <gnustep/base/preface.h>
#include <gnustep/base/Notification.h>
@class NSString;
@class NSDictionary;
@interface NSNotification : NSObject
{
/* Make the instance size of this class match exactly the instance
size of Notification. Thus, behavior_class_add_class() will not
have to increase the instance size of NSNotification, and
NSNotification can safely be subclassed. */
char _NSNotification_placeholder[(sizeof(struct NSObject)
- sizeof(struct Notification))];
}
@end
/* Put this in a category to avoid unimportant errors due to behaviors. */
@interface NSNotification (GNUstep) <NSCopying>
/* Creating a Notification Object */
+ (NSNotification*) notificationWithName: (NSString*)name
object: object;
+ (NSNotification*) notificationWithName: (NSString*)name
object: object
userInfo: (NSDictionary*)user_info;
/* Querying a Notification Object */
- (NSString*) name;
- object;
- (NSDictionary*) userInfo;
@end
/* Put this in a category to avoid unimportant errors due to behaviors. */
@interface NSNotificationCenter : NSObject
@end
@interface NSNotificationCenter (GNUstep)
/* Getting the default NotificationCenter */
+ (NSNotificationCenter*) defaultCenter;
/* Adding and removing observers */
- (void) addObserver: anObserver
selector: (SEL)selector
name: (NSString*)name
object: object;
- (void) removeObserver: anObserver;
- (void) removeObserver: anObserver
name: (NSString*)name
object: object;
/* Posting Notifications */
- (void) postNotification: (NSNotification*)aNotification;
- (void) postNotificationName: (NSString*)name
object: object;
- (void) postNotificationName: (NSString*)name
object: object
userInfo: (NSDictionary*)user_info;
@end
#endif /*__NSNotification_h_GNUSTEP_BASE_INCLUDE */
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