Imported existing code
This commit is contained in:
Hazim Gazov
220
libraries/i686-linux/include/gtk-2.0/gtk/gtkobject.h
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libraries/i686-linux/include/gtk-2.0/gtk/gtkobject.h
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/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GTK_OBJECT_H__
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#define __GTK_OBJECT_H__
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#include <gtk/gtkenums.h>
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#include <gtk/gtktypeutils.h>
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#include <gtk/gtkdebug.h>
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G_BEGIN_DECLS
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/* macros for casting a pointer to a GtkObject or GtkObjectClass pointer,
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* and to test whether `object' and `klass' are of type GTK_TYPE_OBJECT.
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* these are the standard macros for all GtkObject-derived classes.
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*/
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#define GTK_TYPE_OBJECT (gtk_object_get_type ())
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#define GTK_OBJECT(object) (GTK_CHECK_CAST ((object), GTK_TYPE_OBJECT, GtkObject))
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#define GTK_OBJECT_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_OBJECT, GtkObjectClass))
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#define GTK_IS_OBJECT(object) (GTK_CHECK_TYPE ((object), GTK_TYPE_OBJECT))
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#define GTK_IS_OBJECT_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_OBJECT))
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#define GTK_OBJECT_GET_CLASS(object) (GTK_CHECK_GET_CLASS ((object), GTK_TYPE_OBJECT, GtkObjectClass))
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/* Macros for extracting various fields from GtkObject and GtkObjectClass.
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*/
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#define GTK_OBJECT_TYPE(object) (G_TYPE_FROM_INSTANCE (object))
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#define GTK_OBJECT_TYPE_NAME(object) (g_type_name (GTK_OBJECT_TYPE (object)))
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/* GtkObject only uses the first 4 bits of the flags field.
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* Derived objects may use the remaining bits. Though this
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* is a kinda nasty break up, it does make the size of
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* derived objects smaller.
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*/
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typedef enum
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{
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GTK_IN_DESTRUCTION = 1 << 0, /* Used internally during dispose */
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GTK_FLOATING = 1 << 1,
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GTK_RESERVED_1 = 1 << 2,
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GTK_RESERVED_2 = 1 << 3
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} GtkObjectFlags;
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/* Macros for extracting the object_flags from GtkObject.
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*/
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#define GTK_OBJECT_FLAGS(obj) (GTK_OBJECT (obj)->flags)
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#define GTK_OBJECT_FLOATING(obj) ((GTK_OBJECT_FLAGS (obj) & GTK_FLOATING) != 0)
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/* Macros for setting and clearing bits in the object_flags field of GtkObject.
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*/
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#define GTK_OBJECT_SET_FLAGS(obj,flag) G_STMT_START{ (GTK_OBJECT_FLAGS (obj) |= (flag)); }G_STMT_END
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#define GTK_OBJECT_UNSET_FLAGS(obj,flag) G_STMT_START{ (GTK_OBJECT_FLAGS (obj) &= ~(flag)); }G_STMT_END
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typedef struct _GtkObjectClass GtkObjectClass;
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struct _GtkObject
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{
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GObject parent_instance;
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/* 32 bits of flags. GtkObject only uses 4 of these bits and
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* GtkWidget uses the rest. This is done because structs are
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* aligned on 4 or 8 byte boundaries. If a new bitfield were
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* used in GtkWidget much space would be wasted.
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*/
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guint32 flags;
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};
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struct _GtkObjectClass
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{
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GObjectClass parent_class;
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/* Non overridable class methods to set and get per class arguments */
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void (*set_arg) (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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void (*get_arg) (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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/* Default signal handler for the ::destroy signal, which is
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* invoked to request that references to the widget be dropped.
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* If an object class overrides destroy() in order to perform class
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* specific destruction then it must still invoke its superclass'
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* implementation of the method after it is finished with its
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* own cleanup. (See gtk_widget_real_destroy() for an example of
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* how to do this).
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*/
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void (*destroy) (GtkObject *object);
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};
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/* Application-level methods */
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GtkType gtk_object_get_type (void) G_GNUC_CONST;
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void gtk_object_sink (GtkObject *object);
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void gtk_object_destroy (GtkObject *object);
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/****************************************************************/
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#ifndef GTK_DISABLE_DEPRECATED
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GtkObject* gtk_object_new (GtkType type,
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const gchar *first_property_name,
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...);
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GtkObject* gtk_object_ref (GtkObject *object);
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void gtk_object_unref (GtkObject *object);
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void gtk_object_weakref (GtkObject *object,
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GtkDestroyNotify notify,
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gpointer data);
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void gtk_object_weakunref (GtkObject *object,
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GtkDestroyNotify notify,
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gpointer data);
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/* Set 'data' to the "object_data" field of the object. The
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* data is indexed by the "key". If there is already data
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* associated with "key" then the new data will replace it.
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* If 'data' is NULL then this call is equivalent to
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* 'gtk_object_remove_data'.
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* The gtk_object_set_data_full variant acts just the same,
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* but takes an additional argument which is a function to
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* be called when the data is removed.
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* `gtk_object_remove_data' is equivalent to the above,
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* where 'data' is NULL
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* `gtk_object_get_data' gets the data associated with "key".
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*/
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void gtk_object_set_data (GtkObject *object,
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const gchar *key,
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gpointer data);
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void gtk_object_set_data_full (GtkObject *object,
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const gchar *key,
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gpointer data,
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GtkDestroyNotify destroy);
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void gtk_object_remove_data (GtkObject *object,
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const gchar *key);
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gpointer gtk_object_get_data (GtkObject *object,
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const gchar *key);
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void gtk_object_remove_no_notify (GtkObject *object,
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const gchar *key);
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/* Set/get the "user_data" object data field of "object". It should
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* be noted that these functions are no different than calling
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* `gtk_object_set_data'/`gtk_object_get_data' with a key of "user_data".
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* They are merely provided as a convenience.
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*/
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void gtk_object_set_user_data (GtkObject *object,
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gpointer data);
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gpointer gtk_object_get_user_data (GtkObject *object);
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/* Object-level methods */
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/* Object data method variants that operate on key ids. */
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void gtk_object_set_data_by_id (GtkObject *object,
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GQuark data_id,
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gpointer data);
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void gtk_object_set_data_by_id_full (GtkObject *object,
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GQuark data_id,
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gpointer data,
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GtkDestroyNotify destroy);
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gpointer gtk_object_get_data_by_id (GtkObject *object,
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GQuark data_id);
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void gtk_object_remove_data_by_id (GtkObject *object,
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GQuark data_id);
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void gtk_object_remove_no_notify_by_id (GtkObject *object,
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GQuark key_id);
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#define gtk_object_data_try_key g_quark_try_string
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#define gtk_object_data_force_id g_quark_from_string
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/* GtkArg flag bits for gtk_object_add_arg_type
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*/
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typedef enum
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{
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GTK_ARG_READABLE = G_PARAM_READABLE,
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GTK_ARG_WRITABLE = G_PARAM_WRITABLE,
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GTK_ARG_CONSTRUCT = G_PARAM_CONSTRUCT,
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GTK_ARG_CONSTRUCT_ONLY = G_PARAM_CONSTRUCT_ONLY,
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GTK_ARG_CHILD_ARG = 1 << 4
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} GtkArgFlags;
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#define GTK_ARG_READWRITE (GTK_ARG_READABLE | GTK_ARG_WRITABLE)
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void gtk_object_get (GtkObject *object,
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const gchar *first_property_name,
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...);
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void gtk_object_set (GtkObject *object,
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const gchar *first_property_name,
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...);
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void gtk_object_add_arg_type (const gchar *arg_name,
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GtkType arg_type,
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guint arg_flags,
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guint arg_id);
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#endif /* GTK_DISABLE_DEPRECATED */
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G_END_DECLS
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#endif /* __GTK_OBJECT_H__ */
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