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/* ATK - Accessibility Toolkit
* Copyright 2001 Sun Microsystems Inc.
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __ATK_UTIL_H__
#define __ATK_UTIL_H__
#include <atk/atkobject.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* A focus tracker is a function which is called when an object
* receives focus.
*/
typedef void (*AtkFocusTracker) (AtkObject*);
typedef void (*AtkFocusTrackerInit) (void);
/*
* Adds the specified function to the list of functions to be called
* when an object receives focus.
*/
guint atk_add_focus_tracker (AtkFocusTracker focus_tracker);
/*
* Removes the specified focus tracker from the list of function
* to be called when any object receives focus
*/
void atk_remove_focus_tracker (guint tracker_id);
/*
* Specifies the function to be called for focus tracker initialization.
* removal. This function should be called by an implementation of the
* ATK interface if any specific work needs to be done to enable
* focus tracking.
*/
void atk_focus_tracker_init (AtkFocusTrackerInit add_function);
/*
* Cause the focus tracker functions which have been specified to be
* executed for the object.
*/
void atk_focus_tracker_notify (AtkObject *object);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __ATK_UTIL_H__ */
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