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//
// UKCarbonEventHandler.h
// TalkingMoose (XC2)
//
// Created by Uli Kusterer on 26.03.06.
// Copyright 2006 Uli Kusterer.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
#import <Cocoa/Cocoa.h>
#ifndef __CARBON__
// Avoid pulling in all of Carbon.h into files that use an object of this kind (you'll still need it for creating one, though):
typedef void* EventHandlerRef;
typedef void* EventHandlerCallRef;
typedef void* EventRef;
#endif
extern NSString* UKCarbonEventHandlerEventReceived;
@interface UKCarbonEventHandler : NSObject
{
EventHandlerRef evtHandler; // Reference to our event handler to pass to Carbon.
EventHandlerCallRef currCall; // Allows us to forward the event. Only valid while we're handling an event.
EventRef currEvent; // The event we're currently handling.
}
-(id) initWithEventClass: (UInt32)eclass kind: (UInt32)ekind;
-(BOOL) performEventActionAndPassOn; // Override this to perform your action. By default sends a UKCarbonEventHandlerEventReceived notification with this object as the notification object.
-(BOOL) callNextHandler; // Returns YES when the other handler handled the event, NO on error or eventNotHandledErr.
// For you Carbon afficionados:
-(EventHandlerCallRef) currentCallRef;
-(EventRef) currentEventRef;
// Private:
-(OSStatus) handleEvent: (EventRef)inEvent call: (EventHandlerCallRef)inHandlerCallRef;
@end
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