atkmm: Atk::Object Class Reference

atkmm 2.24.2

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Atk::Object Class Reference

The base object class for the Accessibility Toolkit API. More...

`#include <atkmm/object.h>`

Inheritance diagram for Atk::Object:
[legend]

## Public Member Functions
| Object (Object&& src) noexcept
Object& | operator= (Object&& src) noexcept
virtual | ~Object () noexcept
AtkObject* | gobj ()
| Provides access to the underlying C GObject. More...
const AtkObject* | gobj () const
| Provides access to the underlying C GObject. More...
AtkObject* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
Glib::ustring | get_name () const
| Gets the accessible name of the accessible. More...
Glib::ustring | get_description () const
| Gets the accessible description of the accessible. More...
Glib::RefPtr< Atk::Object > | get_parent ()
| Gets the accessible parent of the accessible. More...
int | get_n_accessible_children () const
| Gets the number of accessible children of the accessible. More...
Glib::RefPtr< Atk::Object > | get_accessible_child (int i)
| Gets a reference to the specified accessible child of the object. More...
Glib::RefPtr< RelationSet > | get_relation_set ()
| Gets the Atk::RelationSet associated with the object. More...
Role | get_role () const
| Gets the role of the accessible. More...
Glib::RefPtr< StateSet > | get_state_set ()
| Gets a reference to the state set of the accessible; the caller must unreference it when it is no longer needed. More...
int | get_index_in_parent ()
| Gets the 0-based index of this accessible in its parent; returns -1 if the accessible does not have an accessible parent. More...
void | set_name (const Glib::ustring& name)
| Sets the accessible name of the accessible. More...
void | set_description (const Glib::ustring& description)
| Sets the accessible description of the accessible. More...
void | set_parent (const Glib::RefPtr< Atk::Object >& parent)
| Sets the accessible parent of the accessible. More...
void | set_role (Role role)
| Sets the role of the accessible. More...
void | notify_state_change (State state, bool value)
| Emits a state-change signal for the specified state. More...
bool | add_relationship (RelationType relationship, const Glib::RefPtr< Object >& target)
| Adds a relationship of the specified type with the specified target. More...
bool | remove_relationship (RelationType relationship, const Glib::RefPtr< Object >& target)
| Removes a relationship of the specified type with the specified target. More...
Glib::SignalProxy2< void, guint, gpointer > | signal_children_changed ()
Glib::SignalProxy1< void, bool > | signal_focus_event ()
Glib::SignalProxy1< void, AtkPropertyValues* > | signal_property_change ()
Glib::SignalProxy2< void, const Glib::ustring&, bool > | signal_state_change ()
Glib::SignalProxy0< void > | signal_visible_data_changed ()
Glib::SignalProxy1< void, void** > | signal_active_descendant_changed ()
Glib::PropertyProxy< Glib::ustring > | property_accessible_name ()
| Object instance's name formatted for assistive technology access. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_accessible_name () const
| Object instance's name formatted for assistive technology access. More...
Glib::PropertyProxy< Glib::ustring > | property_accessible_description ()
| Description of an object, formatted for assistive technology access. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_accessible_description () const
| Description of an object, formatted for assistive technology access. More...
Glib::PropertyProxy< Glib::RefPtr< Atk::Object > > | property_accessible_parent ()
| Parent of the current accessible as returned by atk_object_get_parent(). More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Atk::Object > > | property_accessible_parent () const
| Parent of the current accessible as returned by atk_object_get_parent(). More...
Glib::PropertyProxy< double > | property_accessible_value ()
| Is used to notify that the value has changed. More...
Glib::PropertyProxy_ReadOnly< double > | property_accessible_value () const
| Is used to notify that the value has changed. More...
Glib::PropertyProxy< int > | property_accessible_role ()
| The accessible role of this object. More...
Glib::PropertyProxy_ReadOnly< int > | property_accessible_role () const
| The accessible role of this object. More...
Glib::PropertyProxy_ReadOnly< int > | property_accessible_component_layer () const
| The accessible layer of this object. More...
Glib::PropertyProxy_ReadOnly< int > | property_accessible_component_mdi_zorder () const
| The accessible MDI value of this object. More...
Glib::PropertyProxy< Glib::ustring > | property_accessible_table_caption ()
| Is used to notify that the table caption has changed; this property should not be used. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_accessible_table_caption () const
| Is used to notify that the table caption has changed; this property should not be used. More...
Glib::PropertyProxy< Glib::ustring > | property_accessible_table_column_description ()
| Is used to notify that the table column description has changed. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_accessible_table_column_description () const
| Is used to notify that the table column description has changed. More...
Glib::PropertyProxy< Glib::RefPtr< Atk::Object > > | property_accessible_table_column_header ()
| Is used to notify that the table column header has changed. More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Atk::Object > > | property_accessible_table_column_header () const
| Is used to notify that the table column header has changed. More...
Glib::PropertyProxy< Glib::ustring > | property_accessible_table_row_description ()
| Is used to notify that the table row description has changed. More...
Glib::PropertyProxy_ReadOnly< Glib::ustring > | property_accessible_table_row_description () const
| Is used to notify that the table row description has changed. More...
Glib::PropertyProxy< Glib::RefPtr< Atk::Object > > | property_accessible_table_row_header ()
| Is used to notify that the table row header has changed. More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Atk::Object > > | property_accessible_table_row_header () const
| Is used to notify that the table row header has changed. More...
Glib::PropertyProxy< Glib::RefPtr< Atk::Object > > | property_accessible_table_summary ()
| Is used to notify that the table summary has changed. More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Atk::Object > > | property_accessible_table_summary () const
| Is used to notify that the table summary has changed. More...
Public Member Functions inherited from Glib::Object
| Object (const Object &)=delete
Object & | operator= (const Object &)=delete
| Object (Object &&src) noexcept
Object & | operator= (Object &&src) noexcept
void * | get_data (const QueryQuark &key)
void | set_data (const Quark &key, void *data)
void | set_data (const Quark &key, void *data, DestroyNotify notify)
void | remove_data (const QueryQuark &quark)
void * | steal_data (const QueryQuark &quark)
Glib::RefPtr< Glib::Object > | wrap (GObject *object, bool take_copy=false)
Public Member Functions inherited from Glib::ObjectBase
| ObjectBase (const ObjectBase &)=delete
ObjectBase & | operator= (const ObjectBase &)=delete
void | set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value)
void | get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const
void | set_property (const Glib::ustring &property_name, const PropertyType &value)
void | get_property (const Glib::ustring &property_name, PropertyType &value) const
void | connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void > &slot)
sigc::connection | connect_property_changed_with_return (const Glib::ustring &property_name, const sigc::slot< void > &slot)
void | freeze_notify ()
void | thaw_notify ()
virtual void | reference () const
virtual void | unreference () const
GObject * | gobj ()
const GObject * | gobj () const
GObject * | gobj_copy () const
Public Member Functions inherited from sigc::trackable
| trackable () noexcept
| trackable (const trackable &src) noexcept
| trackable (trackable &&src)
| ~trackable ()
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const
void | notify_callbacks ()
trackable & | operator= (const trackable &src)
trackable & | operator= (trackable &&src)
void | remove_destroy_notify_callback (void *data) const

## Static Public Member Functions
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...

## Protected Member Functions
virtual void | on_children_changed (guint change_index, gpointer changed_child)
| This is a default handler for the signal signal_children_changed(). More...
virtual void | on_focus_event (bool focus_in)
| This is a default handler for the signal signal_focus_event(). More...
virtual void | on_property_change (AtkPropertyValues* values)
| This is a default handler for the signal signal_property_change(). More...
virtual void | on_state_change (const Glib::ustring& name, bool state_set)
| This is a default handler for the signal signal_state_change(). More...
virtual void | on_visible_data_changed ()
| This is a default handler for the signal signal_visible_data_changed(). More...
virtual void | on_active_descendant_changed (void** child)
| This is a default handler for the signal signal_active_descendant_changed(). More...
Protected Member Functions inherited from Glib::Object
| Object ()
| Object (const Glib::ConstructParams &construct_params)
| Object (GObject *castitem)
Protected Member Functions inherited from Glib::ObjectBase
| ObjectBase ()
| ObjectBase (const char *custom_type_name)
| ObjectBase (const std::type_info &custom_type_info)
| ObjectBase (ObjectBase &&src) noexcept
ObjectBase & | operator= (ObjectBase &&src) noexcept
virtual | ~ObjectBase () noexcept=0
void | initialize (GObject *castitem)
void | initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper)

## Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Atk::Object > | wrap (AtkObject* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...

## Additional Inherited Members
Public Types inherited from Glib::Object
typedef void(* | DestroyNotify) (gpointer data)
Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify | func_destroy_notify

## Detailed Description

The base object class for the Accessibility Toolkit API.

This class is the primary class for accessibility support via the Accessibility ToolKit (ATK). Objects which are instances of Atk::Object (or instances of Atk::Object-derived types) are queried for properties which relate basic (and generic) properties of a UI component such as name and description. Instances of Atk::Object may also be queried as to whether they implement other ATK interfaces (e.g. Atk::Action, Atk::Component, etc.), as appropriate to the role which a given UI component plays in a user interface.

All UI components in an application which provide useful information or services to the user must provide corresponding Atk::Object instances on request (in GTK+, for instance, usually on a call to Gtk::Widget::get_accessible()), either via ATK support built into the toolkit for the widget class or ancestor class, or in the case of custom widgets, if the inherited Atk::Object implementation is insufficient, via instances of a new Atk::Object subclass.

## Constructor & Destructor Documentation

Atk::Object::Object | ( | Object&& | src | ) |
| noexcept

virtual Atk::Object::~Object | ( |  | ) |
| virtualnoexcept

Reimplemented from Glib::Object.

## Member Function Documentation

bool Atk::Object::add_relationship | ( | RelationType | relationship,
|  | const Glib::RefPtr< Object >& | target
| ) |  |

Adds a relationship of the specified type with the specified target.

Parameters

  relationship | The Atk::RelationType of the relation.
  target | The Atk::Object which is to be the target of the relation.

Returns
  `true` if the relationship is added.

Glib::RefPtr<Atk::Object> Atk::Object::get_accessible_child | ( | int | i | ) |

Gets a reference to the specified accessible child of the object.

The accessible children are 0-based so the first accessible child is at index 0, the second at index 1 and so on.

Parameters

  i | A `int` representing the position of the child, starting from 0.

Returns
  An Atk::Object representing the specified accessible child of the accessible.

Glib::ustring Atk::Object::get_description | ( |  | ) | const

Gets the accessible description of the accessible.

Returns
  A character string representing the accessible description of the accessible.

int Atk::Object::get_index_in_parent | ( |  | ) |

Gets the 0-based index of this accessible in its parent; returns -1 if the accessible does not have an accessible parent.

Returns
  An integer which is the index of the accessible in its parent.

int Atk::Object::get_n_accessible_children | ( |  | ) | const

Gets the number of accessible children of the accessible.

Returns
  An integer representing the number of accessible children of the accessible.

Glib::ustring Atk::Object::get_name | ( |  | ) | const

Gets the accessible name of the accessible.

Returns
  A character string representing the accessible name of the object.

Glib::RefPtr<Atk::Object> Atk::Object::get_parent | ( |  | ) |

Gets the accessible parent of the accessible.

By default this is the one assigned with 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 set_parent(), and will return it with this method.

If you are only interested on the parent assigned with set_parent(), use peek_parent().

Returns
  An Atk::Object representing the accessible parent of the accessible.

Glib::RefPtr<RelationSet> Atk::Object::get_relation_set | ( |  | ) |

Gets the Atk::RelationSet associated with the object.

Returns
  An Atk::RelationSet representing the relation set of the object.

Role Atk::Object::get_role | ( |  | ) | const

Gets the role of the accessible.

Returns
  An Atk::Role which is the role of the accessible.

Glib::RefPtr<StateSet> Atk::Object::get_state_set | ( |  | ) |

Gets a reference to the state set of the accessible; the caller must unreference it when it is no longer needed.

Returns
  A reference to an Atk::StateSet which is the state set of the accessible.

static GType Atk::Object::get_type | ( |  | ) |
| static

Get the GType for this class, for use with the underlying GObject type system.

AtkObject* Atk::Object::gobj | ( |  | ) |
| inline

Provides access to the underlying C GObject.

const AtkObject* Atk::Object::gobj | ( |  | ) | const
| inline

Provides access to the underlying C GObject.

AtkObject* Atk::Object::gobj_copy | ( |  | ) |

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

void Atk::Object::notify_state_change | ( | State | state,
|  | bool | value
| ) |  |

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.

Parameters

  state | An Atk::State whose state is changed.
  value | A `bool` which indicates whether the state is being set on or off.

virtual void Atk::Object::on_active_descendant_changed | ( | void ** | child | ) |
| protectedvirtual

This is a default handler for the signal signal_active_descendant_changed().

virtual void Atk::Object::on_children_changed | ( | guint | change_index,
|  | gpointer | changed_child
| ) |  |
| protectedvirtual

This is a default handler for the signal signal_children_changed().

virtual void Atk::Object::on_focus_event | ( | bool | focus_in | ) |
| protectedvirtual

This is a default handler for the signal signal_focus_event().

virtual void Atk::Object::on_property_change | ( | AtkPropertyValues * | values | ) |
| protectedvirtual

This is a default handler for the signal signal_property_change().

virtual void Atk::Object::on_state_change | ( | const Glib::ustring & | name,
|  | bool | state_set
| ) |  |
| protectedvirtual

This is a default handler for the signal signal_state_change().

virtual void Atk::Object::on_visible_data_changed | ( |  | ) |
| protectedvirtual

This is a default handler for the signal signal_visible_data_changed().

Object& Atk::Object::operator= | ( | Object&& | src | ) |
| noexcept

Glib::PropertyProxy_ReadOnly< int > Atk::Object::property_accessible_component_layer | ( |  | ) | const

The accessible layer of this object.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< int > Atk::Object::property_accessible_component_mdi_zorder | ( |  | ) | const

The accessible MDI value of this object.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_description | ( |  | ) |

Description of an object, formatted for assistive technology access.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_description | ( |  | ) | const

Description of an object, formatted for assistive technology access.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_name | ( |  | ) |

Object instance's name formatted for assistive technology access.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_name | ( |  | ) | const

Object instance's name formatted for assistive technology access.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_parent | ( |  | ) |

Parent of the current accessible as returned by atk_object_get_parent().

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_parent | ( |  | ) | const

Parent of the current accessible as returned by atk_object_get_parent().

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< int > Atk::Object::property_accessible_role | ( |  | ) |

The accessible role of this object.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< int > Atk::Object::property_accessible_role | ( |  | ) | const

The accessible role of this object.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_table_caption | ( |  | ) |

Is used to notify that the table caption has changed; this property should not be used.

accessible-table-caption-object should be used instead.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_table_caption | ( |  | ) | const

Is used to notify that the table caption has changed; this property should not be used.

accessible-table-caption-object should be used instead.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_table_column_description | ( |  | ) |

Is used to notify that the table column description has changed.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_table_column_description | ( |  | ) | const

Is used to notify that the table column description has changed.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_column_header | ( |  | ) |

Is used to notify that the table column header has changed.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_column_header | ( |  | ) | const

Is used to notify that the table column header has changed.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::ustring > Atk::Object::property_accessible_table_row_description | ( |  | ) |

Is used to notify that the table row description has changed.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::ustring > Atk::Object::property_accessible_table_row_description | ( |  | ) | const

Is used to notify that the table row description has changed.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_row_header | ( |  | ) |

Is used to notify that the table row header has changed.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_row_header | ( |  | ) | const

Is used to notify that the table row header has changed.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_summary | ( |  | ) |

Is used to notify that the table summary has changed.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<Atk::Object> > Atk::Object::property_accessible_table_summary | ( |  | ) | const

Is used to notify that the table summary has changed.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy< double > Atk::Object::property_accessible_value | ( |  | ) |

Is used to notify that the value has changed.

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< double > Atk::Object::property_accessible_value | ( |  | ) | const

Is used to notify that the value has changed.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

bool Atk::Object::remove_relationship | ( | RelationType | relationship,
|  | const Glib::RefPtr< Object >& | target
| ) |  |

Removes a relationship of the specified type with the specified target.

Parameters

  relationship | The Atk::RelationType of the relation.
  target | The Atk::Object which is the target of the relation to be removed.

Returns
  `true` if the relationship is removed.

void Atk::Object::set_description | ( | const Glib::ustring & | description | ) |

Sets the accessible description of the accessible.

You can't set the description to `nullptr`. This is reserved for the initial value. In this aspect `nullptr` is similar to ATK_ROLE_UNKNOWN. If you want to set the name to a empty value you can use "".

Parameters

  description | A character string to be set as the accessible description.

void Atk::Object::set_name | ( | const Glib::ustring & | name | ) |

Sets the accessible name of the accessible.

You can't set the name to `nullptr`. This is reserved for the initial value. In this aspect `nullptr` is similar to ATK_ROLE_UNKNOWN. If you want to set the name to a empty value you can use "".

Parameters

  name | A character string to be set as the accessible name.

void Atk::Object::set_parent | ( | const Glib::RefPtr< Atk::Object >& | parent | ) |

Sets the accessible parent of the accessible.

parent can be `nullptr`.

Parameters

  parent | An Atk::Object to be set as the accessible parent.

void Atk::Object::set_role | ( | Role | role | ) |

Sets the role of the accessible.

Parameters

  role | An Atk::Role to be set as the role.

Glib::SignalProxy1< void,void** > Atk::Object::signal_active_descendant_changed | ( |  | ) |

Slot Prototype:
  `void on_my_active_descendant_changed(void** child)`

The "active-descendant-changed" signal is emitted by an object which has the state ATK_STATE_MANAGES_DESCENDANTS when the focus object in the object changes. For instance, a table will emit the signal when the cell in the table which has focus changes.

Parameters

  child | The newly focused object.

Glib::SignalProxy2< void,guint,gpointer > Atk::Object::signal_children_changed | ( |  | ) |

Slot Prototype:
  `void on_my_children_changed(guint change_index, gpointer changed_child)`

The signal "children-changed" is emitted when a child is added or removed form an object. It supports two details: "add" and "remove"

Parameters

  change_index | The index of the added or removed child. The value can be -1. This is used if the value is not known by the implementor when the child is added/removed or irrelevant.
  changed_child | A gpointer to the child AtkObject which was added or removed. If the child was removed, it is possible that it is not available for the implementor. In that case this pointer can be `nullptr`.

Glib::SignalProxy1< void,bool > Atk::Object::signal_focus_event | ( |  | ) |

Slot Prototype:
  `void on_my_focus_event(bool focus_in)`

The signal "focus-event" is emitted when an object gained or lost focus.

Deprecated: 2.9.4: Use the Atk::Object::signal_state_change() signal instead.

Parameters

  focus_in | A boolean value which indicates whether the object gained or lost focus.

Glib::SignalProxy1< void,AtkPropertyValues* > Atk::Object::signal_property_change | ( |  | ) |

Slot Prototype:
  `void on_my_property_change(AtkPropertyValues* values)`

The signal "property-change" is emitted when an object's property value changes. values contains an Atk::PropertyValues with the name and the new value of the property whose value has changed. Note that, as with GObject notify, getting this signal does not guarantee that the value of the property has actually changed; it may also be emitted when the setter of the property is called to reinstate the previous value.

Toolkit implementor note: ATK implementors should use Glib::object_notify() to emit property-changed notifications. Atk::Object::signal_property_changed() is needed by the implementation of atk_add_global_event_listener() because GObject notify doesn't support emission hooks.

Parameters

  values | An Atk::PropertyValues containing the new value of the property which changed.

Glib::SignalProxy2< void,const Glib::ustring&,bool > Atk::Object::signal_state_change | ( |  | ) |

Slot Prototype:
  `void on_my_state_change(const Glib::ustring& name, bool state_set)`

The "state-change" signal is emitted when an object's state changes. The detail value identifies the state type which has changed.

Parameters

  name | The name of the state which has changed.
  state_set | A boolean which indicates whether the state has been set or unset.

Glib::SignalProxy0< void > Atk::Object::signal_visible_data_changed | ( |  | ) |

Slot Prototype:
  `void on_my_visible_data_changed()`

The "visible-data-changed" signal is emitted when the visual appearance of the object changed.

## Friends And Related Function Documentation

Glib::RefPtr< Atk::Object > wrap | ( | AtkObject * | object,
|  | bool | take_copy = `false`
| ) |  |
| related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.