/* 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_VALUE_H__
#define __ATK_VALUE_H__
#include <atk/atkobject.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* The AtkValue interface should be supported by any object that
* supports a numerical value ( e . g . , a scroll bar ) . This interface
* provides the standard mechanism for an assistive technology to
* determine and set the numerical value as well as get the minimum
* and maximum values .
*/
#define ATK_TYPE_VALUE (atk_value_get_type ())
#define ATK_IS_VALUE(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_VALUE)
#define ATK_VALUE(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_VALUE, AtkValue)
#define ATK_VALUE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_VALUE, AtkValueIface))
#ifndef _TYPEDEF_ATK_VALUE_
#define _TYPEDEF_ATK_VALUE__
typedef struct _AtkValue AtkValue;
#endif
typedef struct _AtkValueIface AtkValueIface;
struct _AtkValueIface
{
GTypeInterface parent;
void (* get_current_value) (AtkValue *obj,
GValue *value);
void (* get_maximum_value) (AtkValue *obj,
GValue *value);
void (* get_minimum_value) (AtkValue *obj,
GValue *value);
gboolean (* set_current_value) (AtkValue *obj,
const GValue *value);
void (* get_minimum_increment) (AtkValue *obj,
GValue *value);
AtkFunction pad1;
};
GType atk_value_get_type (void );
void atk_value_get_current_value (AtkValue *obj,
GValue *value);
void atk_value_get_maximum_value (AtkValue *obj,
GValue *value);
void atk_value_get_minimum_value (AtkValue *obj,
GValue *value);
gboolean atk_value_set_current_value (AtkValue *obj,
const GValue *value);
void atk_value_get_minimum_increment (AtkValue *obj,
GValue *value);
/*
* Additional GObject properties exported by GaccessibleValue :
* " accessible_value "
* ( the accessible value has changed )
*/
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __ATK_VALUE_H__ */
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