Table caption.
Accessible table column description.
Accessible table column header.
Accessible table row description.
Accessible table row header.
Numeric value of this object, in case being and AtkValue.
Adds a relationship of the specified type with the specified target.
The #AtkRelationType of the relation
The #AtkObject which is to be the target of the relation.
Creates a binding between source_property on source and target_property
on target.
Whenever the source_property is changed the target_property is
updated using the same value. For instance:
g_object_bind_property (action, "active", widget, "sensitive", 0);
Will result in the "sensitive" property of the widget #GObject instance to be updated with the same value of the "active" property of the action #GObject instance.
If flags contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
if target_property on target changes then the source_property on source
will be updated as well.
The binding will automatically be removed when either the source or the
target instances are finalized. To remove the binding without affecting the
source and the target you can just call g_object_unref() on the returned
#GBinding instance.
Removing the binding by calling g_object_unref() on it must only be done if
the binding, source and target are only used from a single thread and it
is clear that both source and target outlive the binding. Especially it
is not safe to rely on this if the binding, source or target can be
finalized from different threads. Keep another reference to the binding and
use g_binding_unbind() instead to be on the safe side.
A #GObject can have multiple bindings.
the property on source to bind
the target #GObject
the property on target to bind
flags to pass to #GBinding
Creates a binding between source_property on source and target_property
on target, allowing you to set the transformation functions to be used by
the binding.
This function is the language bindings friendly version of g_object_bind_property_full(), using #GClosures instead of function pointers.
the property on source to bind
the target #GObject
the property on target to bind
flags to pass to #GBinding
a #GClosure wrapping the transformation function from the source to the target, or %NULL to use the default
a #GClosure wrapping the transformation function from the target to the source, or %NULL to use the default
Checks whether the specified point is within the extent of the component.
Toolkit implementor note: ATK provides a default implementation for this virtual method. In general there are little reason to re-implement it.
x coordinate
y coordinate
specifies whether the coordinates are relative to the screen or to the components top level window
This function is intended for #GObject implementations to re-enforce a [floating][floating-ref] object reference. Doing this is seldom required: all #GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink().
Increases the freeze count on object. If the freeze count is
non-zero, the emission of "notify" signals on object is
stopped. The signals are queued until the freeze count is decreased
to zero. Duplicate notifications are squashed so that at most one
#GObject::notify signal is emitted for each property modified while the
object is frozen.
This is necessary for accessors that modify multiple properties to prevent premature notification while the object is still being modified.
Gets the accessible id of the accessible.
Returns the alpha value (i.e. the opacity) for this
component, on a scale from 0 (fully transparent) to 1.0
(fully opaque).
Get a list of properties applied to this object as a whole, as an #AtkAttributeSet consisting of name-value pairs. As such these attributes may be considered weakly-typed properties or annotations, as distinct from strongly-typed object data available via other get/set methods. Not all objects have explicit "name-value pair" #AtkAttributeSet properties.
Gets a named field from the objects table of associations (see g_object_set_data()).
name of the key for that association
Gets the accessible description of the accessible.
Gets the rectangle which gives the extent of the component.
If the extent can not be obtained (e.g. a non-embedded plug or missing support), all of x, y, width, height are set to -1.
specifies whether the coordinates are relative to the screen or to the components top level window
Gets the unique ID of an #AtkPlug object, which can be used to embed inside of an #AtkSocket using atk_socket_embed().
Internally, this calls a class function that should be registered by the IPC layer (usually at-spi2-atk). The implementor of an #AtkPlug object should call this function (after atk-bridge is loaded) and pass the value to the process implementing the #AtkSocket, so it could embed the plug.
Gets the 0-based index of this accessible in its parent; returns -1 if the accessible does not have an accessible parent.
Gets the zorder of the accessible. The value G_MININT will be returned if the layer of the accessible is not ATK_LAYER_MDI.
Gets the number of accessible children of the accessible.
Gets the accessible name of the accessible.
Gets a UTF-8 string indicating the POSIX-style LC_MESSAGES locale
of accessible.
Gets the accessible parent of the accessible. By default this is the one assigned with atk_object_set_parent(), but it is assumed that ATK implementors have ways to get the parent of the object without the need of assigning it manually with atk_object_set_parent(), and will return it with this method.
If you are only interested on the parent assigned with atk_object_set_parent(), use atk_object_peek_parent().
Gets the position of component in the form of
a point specifying component's top-left corner.
If the position can not be obtained (e.g. a non-embedded plug or missing support), x and y are set to -1.
specifies whether the coordinates are relative to the screen or to the components top level window
Gets a property of an object.
The value can be:
In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling g_value_unset().
Note that g_object_get_property() is really intended for language bindings, g_object_get() is much more convenient for C programming.
the name of the property to get
return location for the property value
This function gets back user data pointers stored via g_object_set_qdata().
A #GQuark, naming the user data pointer
Gets the size of the component in terms of width and height.
If the size can not be obtained (e.g. a non-embedded plug or missing support), width and height are set to -1.
Gets n_properties properties for an object.
Obtained properties will be set to values. All properties must be valid.
Warnings will be emitted and undefined behaviour may result if invalid
properties are passed in.
the names of each property to get
the values of each property to get
Grabs focus for this component.
This function is called when implementing subclasses of #AtkObject. It does initialization required for the new object. It is intended that this function should called only in the ..._new() functions used to create an instance of a subclass of #AtkObject
a #gpointer which identifies the object for which the AtkObject was created.
Checks whether object has a [floating][floating-ref] reference.
Emits a "notify" signal for the property property_name on object.
When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.
Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.
the name of a property installed on the class of object.
Emits a "notify" signal for the property specified by pspec on object.
This function omits the property name lookup, hence it is faster than g_object_notify().
One way to avoid using g_object_notify() from within the class that registered the properties, and using g_object_notify_by_pspec() instead, is to store the GParamSpec used with g_object_class_install_property() inside a static array, e.g.:
enum
{
PROP_0,
PROP_FOO,
PROP_LAST
};
static GParamSpec *properties[PROP_LAST];
static void
my_object_class_init (MyObjectClass *klass)
{
properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
0, 100,
50,
G_PARAM_READWRITE);
g_object_class_install_property (gobject_class,
PROP_FOO,
properties[PROP_FOO]);
}
and then notify a change on the "foo" property with:
g_object_notify_by_pspec (self, properties[PROP_FOO]);
the #GParamSpec of a property installed on the class of object.
Emits a state-change signal for the specified state.
Note that as a general rule when the state of an existing object changes, emitting a notification is expected.
an #AtkState whose state is changed
a gboolean which indicates whether the state is being set on or off
Gets the accessible parent of the accessible, if it has been manually assigned with atk_object_set_parent. Otherwise, this function returns %NULL.
This method is intended as an utility for ATK implementors, and not to be exposed to accessible tools. See atk_object_get_parent() for further reference.
Gets a reference to the accessible child, if one exists, at the
coordinate point specified by x and y.
x coordinate
y coordinate
specifies whether the coordinates are relative to the screen or to the components top level window
Gets the #AtkRelationSet associated with the object.
Increase the reference count of object, and possibly remove the
[floating][floating-ref] reference, if object has a floating reference.
In other words, if the object is floating, then this call "assumes ownership" of the floating reference, converting it to a normal reference by clearing the floating flag while leaving the reference count unchanged. If the object is not floating, then this call adds a new normal reference increasing the reference count by one.
Since GLib 2.56, the type of object will be propagated to the return type
under the same conditions as for g_object_ref().
Remove the handler specified by handler_id from the list of
functions to be executed when this object receives focus events
(in or out).
the handler id of the focus handler to be removed from component
Removes a property change handler.
a guint which identifies the handler to be removed.
Removes a relationship of the specified type with the specified target.
The #AtkRelationType of the relation
The #AtkObject which is the target of the relation to be removed.
Releases all references to other objects. This can be used to break reference cycles.
This function should only be called from object system implementations.
Makes component visible on the screen by scrolling all necessary parents.
Contrary to atk_component_set_position, this does not actually move
component in its parent, this only makes the parents scroll so that the
object shows up on the screen, given its current position within the parents.
specify where the object should be made visible.
Move the top-left of component to a given position of the screen by
scrolling all necessary parents.
specify whether coordinates are relative to the screen or to the parent object.
x-position where to scroll to
y-position where to scroll to
Sets the accessible ID of the accessible. This is not meant to be presented to the user, but to be an ID which is stable over application development. Typically, this is the gtkbuilder ID. Such an ID will be available for instance to identify a given well-known accessible object for tailored screen reading, or for automatic regression testing.
a character string to be set as the accessible id
Sets child as accessible child of plug and plug as accessible parent of
child. child can be NULL.
In some cases, one can not use the AtkPlug type directly as accessible object for the toplevel widget of the application. For instance in the gtk case, GtkPlugAccessible can not inherit both from GtkWindowAccessible and from AtkPlug. In such a case, one can create, in addition to the standard accessible object for the toplevel widget, an AtkPlug object, and make the former the child of the latter by calling atk_plug_set_child().
Each object carries around a table of associations from strings to pointers. This function lets you set an association.
If the object already had an association with that name, the old association will be destroyed.
Internally, the key is converted to a #GQuark using g_quark_from_string().
This means a copy of key is kept permanently (even after object has been
finalized) — so it is recommended to only use a small, bounded set of values
for key in your program, to avoid the #GQuark storage growing unbounded.
name of the key
data to associate with that key
Sets the accessible description of the accessible. You can't set the description to NULL. This is reserved for the initial value. In this aspect NULL is similar to ATK_ROLE_UNKNOWN. If you want to set the name to a empty value you can use "".
a character string to be set as the accessible description
Sets the extents of component.
x coordinate
y coordinate
width to set for component
height to set for component
specifies whether the coordinates are relative to the screen or to the components top level window
Sets the accessible name of the accessible. You can't set the name to NULL. This is reserved for the initial value. In this aspect NULL is similar to ATK_ROLE_UNKNOWN. If you want to set the name to a empty value you can use "".
a character string to be set as the accessible name
Sets the position of component.
Contrary to atk_component_scroll_to, this does not trigger any scrolling,
this just moves component in its parent.
x coordinate
y coordinate
specifies whether the coordinates are relative to the screen or to the component's top level window
Sets a property on an object.
the name of the property to set
the value
Set the size of the component in terms of width and height.
width to set for component
height to set for component
Remove a specified datum from the object's data associations, without invoking the association's destroy handler.
name of the key
This function gets back user data pointers stored via
g_object_set_qdata() and removes the data from object
without invoking its destroy() function (if any was
set).
Usually, calling this function is only required to update
user data pointers with a destroy notifier, for example:
void
object_add_to_user_list (GObject *object,
const gchar *new_string)
{
// the quark, naming the object data
GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
// retrieve the old string list
GList *list = g_object_steal_qdata (object, quark_string_list);
// prepend new string
list = g_list_prepend (list, g_strdup (new_string));
// this changed 'list', so we need to set it again
g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
}
static void
free_string_list (gpointer data)
{
GList *node, *list = data;
for (node = list; node; node = node->next)
g_free (node->data);
g_list_free (list);
}
Using g_object_get_qdata() in the above example, instead of g_object_steal_qdata() would have left the destroy function set, and thus the partial string list would have been freed upon g_object_set_qdata_full().
A #GQuark, naming the user data pointer
Reverts the effect of a previous call to
g_object_freeze_notify(). The freeze count is decreased on object
and when it reaches zero, queued "notify" signals are emitted.
Duplicate notifications for each property are squashed so that at most one #GObject::notify signal is emitted for each property, in the reverse order in which they have been queued.
It is an error to call this function when the freeze count is zero.
Decreases the reference count of object. When its reference count
drops to 0, the object is finalized (i.e. its memory is freed).
If the pointer to the #GObject may be reused in future (for example, if it is an instance variable of another object), it is recommended to clear the pointer to %NULL rather than retain a dangling pointer to a potentially invalid #GObject instance. Use g_clear_object() for this.
This function essentially limits the life time of the closure to
the life time of the object. That is, when the object is finalized,
the closure is invalidated by calling g_closure_invalidate() on
it, in order to prevent invocations of the closure with a finalized
(nonexisting) object. Also, g_object_ref() and g_object_unref() are
added as marshal guards to the closure, to ensure that an extra
reference count is held on object during invocation of the
closure. Usually, this function will be called on closures that
use this object as closure data.
#GClosure to watch
Find the #GParamSpec with the given name for an
interface. Generally, the interface vtable passed in as g_iface
will be the default vtable from g_type_default_interface_ref(), or,
if you know the interface has already been loaded,
g_type_default_interface_peek().
any interface vtable for the interface, or the default vtable for the interface
name of a property to look up.
Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created #GParamSpec, but normally g_object_class_override_property() will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property.
This function is meant to be called from the interface's default
vtable initialization function (the class_init member of
#GTypeInfo.) It must not be called after after class_init has
been called for any object types implementing this interface.
If pspec is a floating reference, it will be consumed.
any interface vtable for the interface, or the default vtable for the interface.
the #GParamSpec for the new property
Lists the properties of an interface.Generally, the interface
vtable passed in as g_iface will be the default vtable from
g_type_default_interface_ref(), or, if you know the interface has
already been loaded, g_type_default_interface_peek().
any interface vtable for the interface, or the default vtable for the interface
Creates a new instance of a #GObject subtype and sets its properties.
Construction parameters (see %G_PARAM_CONSTRUCT, %G_PARAM_CONSTRUCT_ONLY) which are not explicitly specified are set to their default values.
the type id of the #GObject subtype to instantiate
an array of #GParameter
See #AtkSocket