:right-sidebar: True Settings =================================================================== .. currentmodule:: gi.repository.Gio .. class:: Settings(*args, **kwargs) :no-contents-entry: Superclasses: :class:`~gi.repository.GObject.Object` Provide dictionary-like access to GLib.Settings. Constructors ------------ .. rst-class:: interim-class .. class:: Settings :no-index: .. classmethod:: new(schema_id: str) -> ~gi.repository.Gio.Settings Creates a new :obj:`~gi.repository.Gio.Settings` object with the schema specified by ``schema_id``\. It is an error for the schema to not exist: schemas are an essential part of a program, as they provide type information. If schemas need to be dynamically loaded (for example, from an optional runtime dependency), :func:`~gi.repository.Gio.SettingsSchemaSource.lookup` can be used to test for their existence before loading them. Signals on the newly created :obj:`~gi.repository.Gio.Settings` object will be dispatched via the thread-default :obj:`~gi.repository.GLib.MainContext` in effect at the time of the call to :func:`~gi.repository.Gio.Settings.new`. The new :obj:`~gi.repository.Gio.Settings` will hold a reference on the context. See :func:`~gi.repository.GLib.MainContext.push_thread_default`. .. versionadded:: 2.26 :param schema_id: the id of the schema .. classmethod:: new_full(schema: ~gi.repository.Gio.SettingsSchema, backend: ~gi.repository.Gio.SettingsBackend | None = None, path: str | None = None) -> ~gi.repository.Gio.Settings Creates a new :obj:`~gi.repository.Gio.Settings` object with a given schema, backend and path. It should be extremely rare that you ever want to use this function. It is made available for advanced use-cases (such as plugin systems that want to provide access to schemas loaded from custom locations, etc). At the most basic level, a :obj:`~gi.repository.Gio.Settings` object is a pure composition of 4 things: a :obj:`~gi.repository.Gio.SettingsSchema`\, a :obj:`~gi.repository.Gio.SettingsBackend`\, a path within that backend, and a :obj:`~gi.repository.GLib.MainContext` to which signals are dispatched. This constructor therefore gives you full control over constructing :obj:`~gi.repository.Gio.Settings` instances. The first 3 parameters are given directly as ``schema``\, ``backend`` and ``path``\, and the main context is taken from the thread-default (as per :func:`~gi.repository.Gio.Settings.new`). If ``backend`` is :const:`None` then the default backend is used. If ``path`` is :const:`None` then the path from the schema is used. It is an error if ``path`` is :const:`None` and the schema has no path of its own or if ``path`` is non-:const:`None` and not equal to the path that the schema does have. .. versionadded:: 2.32 :param schema: a :obj:`~gi.repository.Gio.SettingsSchema` :param backend: a :obj:`~gi.repository.Gio.SettingsBackend` :param path: the path to use .. classmethod:: new_with_backend(schema_id: str, backend: ~gi.repository.Gio.SettingsBackend) -> ~gi.repository.Gio.Settings Creates a new :obj:`~gi.repository.Gio.Settings` object with the schema specified by ``schema_id`` and a given :obj:`~gi.repository.Gio.SettingsBackend`\. Creating a :obj:`~gi.repository.Gio.Settings` object with a different backend allows accessing settings from a database other than the usual one. For example, it may make sense to pass a backend corresponding to the "defaults" settings database on the system to get a settings object that modifies the system default settings instead of the settings for this user. .. versionadded:: 2.26 :param schema_id: the id of the schema :param backend: the :obj:`~gi.repository.Gio.SettingsBackend` to use .. classmethod:: new_with_backend_and_path(schema_id: str, backend: ~gi.repository.Gio.SettingsBackend, path: str) -> ~gi.repository.Gio.Settings Creates a new :obj:`~gi.repository.Gio.Settings` object with the schema specified by ``schema_id`` and a given :obj:`~gi.repository.Gio.SettingsBackend` and path. This is a mix of :func:`~gi.repository.Gio.Settings.new_with_backend` and :func:`~gi.repository.Gio.Settings.new_with_path`. .. versionadded:: 2.26 :param schema_id: the id of the schema :param backend: the :obj:`~gi.repository.Gio.SettingsBackend` to use :param path: the path to use .. classmethod:: new_with_path(schema_id: str, path: str) -> ~gi.repository.Gio.Settings Creates a new :obj:`~gi.repository.Gio.Settings` object with the relocatable schema specified by ``schema_id`` and a given path. You only need to do this if you want to directly create a settings object with a schema that doesn't have a specified path of its own. That's quite rare. It is a programmer error to call this function for a schema that has an explicitly specified path. It is a programmer error if ``path`` is not a valid path. A valid path begins and ends with '/' and does not contain two consecutive '/' characters. .. versionadded:: 2.26 :param schema_id: the id of the schema :param path: the path to use Methods ------- .. rst-class:: interim-class .. class:: Settings :no-index: .. method:: apply() -> None Applies any changes that have been made to the settings. This function does nothing unless ``settings`` is in 'delay-apply' mode; see :func:`~gi.repository.Gio.Settings.delay`. In the normal case settings are always applied immediately. .. method:: bind(key: str, object: ~gi.repository.GObject.Object, property: str, flags: ~gi.repository.Gio.SettingsBindFlags) -> None Create a binding between the ``key`` in the ``settings`` object and the property ``property`` of ``object``\. The binding uses the default GIO mapping functions to map between the settings and property values. These functions handle booleans, numeric types and string types in a straightforward way. Use :func:`~gi.repository.Gio.Settings.bind_with_mapping` if you need a custom mapping, or map between types that are not supported by the default mapping functions. Unless the ``flags`` include :const:`~gi.repository.Gio.SettingsBindFlags.NO_SENSITIVITY`, this function also establishes a binding between the writability of ``key`` and the "sensitive" property of ``object`` (if ``object`` has a boolean property by that name). See :func:`~gi.repository.Gio.Settings.bind_writable` for more details about writable bindings. Note that the lifecycle of the binding is tied to ``object``\, and that you can have only one binding per object property. If you bind the same property twice on the same object, the second binding overrides the first one. .. versionadded:: 2.26 :param key: the key to bind :param object: a :obj:`~gi.repository.GObject.Object` :param property: the name of the property to bind :param flags: flags for the binding .. method:: bind_with_mapping(key: str, object: ~gi.repository.GObject.Object, property: str, flags: ~gi.repository.Gio.SettingsBindFlags, get_mapping: ~gi.repository.GObject.Closure | None = None, set_mapping: ~gi.repository.GObject.Closure | None = None) -> None Create a binding between the ``key`` in the ``settings`` object and the property ``property`` of ``object``\. The binding uses the provided mapping functions to map between settings and property values. Note that the lifecycle of the binding is tied to ``object``\, and that you can have only one binding per object property. If you bind the same property twice on the same object, the second binding overrides the first one. .. versionadded:: 2.26 :param key: the key to bind :param object: a :obj:`~gi.repository.GObject.Object` :param property: the name of the property to bind :param flags: flags for the binding :param get_mapping: a function that gets called to convert values from ``settings`` to ``object``\, or :const:`None` to use the default GIO mapping :param set_mapping: a function that gets called to convert values from ``object`` to ``settings``\, or :const:`None` to use the default GIO mapping .. method:: bind_writable(key: str, object: ~gi.repository.GObject.Object, property: str, inverted: bool) -> None Create a binding between the writability of ``key`` in the ``settings`` object and the property ``property`` of ``object``\. The property must be boolean; "sensitive" or "visible" properties of widgets are the most likely candidates. Writable bindings are always uni-directional; changes of the writability of the setting will be propagated to the object property, not the other way. When the ``inverted`` argument is :const:`True`, the binding inverts the value as it passes from the setting to the object, i.e. ``property`` will be set to :const:`True` if the key is not writable. Note that the lifecycle of the binding is tied to ``object``\, and that you can have only one binding per object property. If you bind the same property twice on the same object, the second binding overrides the first one. .. versionadded:: 2.26 :param key: the key to bind :param object: a :obj:`~gi.repository.GObject.Object` :param property: the name of a boolean property to bind :param inverted: whether to 'invert' the value .. method:: create_action(key: str) -> ~gi.repository.Gio.Action Creates a :obj:`~gi.repository.Gio.Action` corresponding to a given :obj:`~gi.repository.Gio.Settings` key. The action has the same name as the key. The value of the key becomes the state of the action and the action is enabled when the key is writable. Changing the state of the action results in the key being written to. Changes to the value or writability of the key cause appropriate change notifications to be emitted for the action. For boolean-valued keys, action activations take no parameter and result in the toggling of the value. For all other types, activations take the new value for the key (which must have the correct type). .. versionadded:: 2.32 :param key: the name of a key in ``settings`` .. method:: delay() -> None Changes the :obj:`~gi.repository.Gio.Settings` object into 'delay-apply' mode. In this mode, changes to ``settings`` are not immediately propagated to the backend, but kept locally until :func:`~gi.repository.Gio.Settings.apply` is called. .. versionadded:: 2.26 .. method:: do_change_event(self, keys: int, n_keys: int) -> bool :param keys: :param n_keys: .. method:: do_changed(self, key: str) -> None :param key: .. method:: do_writable_change_event(self, key: int) -> bool :param key: .. method:: do_writable_changed(self, key: str) -> None :param key: .. method:: get_boolean(key: str) -> bool Gets the value that is stored at ``key`` in ``settings``\. A convenience variant of :func:`~gi.repository.Gio.Settings.get` for booleans. It is a programmer error to give a ``key`` that isn't specified as having a boolean type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: get_child(name: str) -> ~gi.repository.Gio.Settings Creates a child settings object which has a base path of ``base-path/@name``\, where ``base-path`` is the base path of ``settings``\. The schema for the child settings object must have been declared in the schema of ``settings`` using a ```` element. The created child settings object will inherit the :obj:`~gi.repository.Gio.Settings`\:delay-apply mode from ``settings``\. .. versionadded:: 2.26 :param name: the name of the child schema .. method:: get_default_value(key: str) -> ~gi.repository.GLib.Variant | None Gets the "default value" of a key. This is the value that would be read if :func:`~gi.repository.Gio.Settings.reset` were to be called on the key. Note that this may be a different value than returned by :func:`~gi.repository.Gio.SettingsSchemaKey.get_default_value` if the system administrator has provided a default value. Comparing the return values of :func:`~gi.repository.Gio.Settings.get_default_value` and :func:`~gi.repository.Gio.Settings.get_value` is not sufficient for determining if a value has been set because the user may have explicitly set the value to something that happens to be equal to the default. The difference here is that if the default changes in the future, the user's key will still be set. This function may be useful for adding an indication to a UI of what the default value was before the user set it. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings``\. .. versionadded:: 2.40 :param key: the key to get the default value for .. method:: get_double(key: str) -> float Gets the value that is stored at ``key`` in ``settings``\. A convenience variant of :func:`~gi.repository.Gio.Settings.get` for doubles. It is a programmer error to give a ``key`` that isn't specified as having a 'double' type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: get_enum(key: str) -> int Gets the value that is stored in ``settings`` for ``key`` and converts it to the enum value that it represents. In order to use this function the type of the value must be a string and it must be marked in the schema file as an enumerated type. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings`` or is not marked as an enumerated type. If the value stored in the configuration database is not a valid value for the enumerated type then this function will return the default value. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: get_flags(key: str) -> int Gets the value that is stored in ``settings`` for ``key`` and converts it to the flags value that it represents. In order to use this function the type of the value must be an array of strings and it must be marked in the schema file as a flags type. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings`` or is not marked as a flags type. If the value stored in the configuration database is not a valid value for the flags type then this function will return the default value. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: get_has_unapplied() -> bool Returns whether the :obj:`~gi.repository.Gio.Settings` object has any unapplied changes. This can only be the case if it is in 'delayed-apply' mode. .. versionadded:: 2.26 .. method:: get_int(key: str) -> int Gets the value that is stored at ``key`` in ``settings``\. A convenience variant of :func:`~gi.repository.Gio.Settings.get` for 32-bit integers. It is a programmer error to give a ``key`` that isn't specified as having a int32 type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: get_int64(key: str) -> int Gets the value that is stored at ``key`` in ``settings``\. A convenience variant of :func:`~gi.repository.Gio.Settings.get` for 64-bit integers. It is a programmer error to give a ``key`` that isn't specified as having a int64 type in the schema for ``settings``\. .. versionadded:: 2.50 :param key: the key to get the value for .. method:: get_mapped(key: str, mapping: ~typing.Callable[[~gi.repository.GLib.Variant, ~typing.Any], ~typing.Tuple[bool, ~typing.Any | None]], user_data: ~typing.Any = None) -> ~typing.Any | None Gets the value that is stored at ``key`` in ``settings``\, subject to application-level validation/mapping. You should use this function when the application needs to perform some processing on the value of the key (for example, parsing). The ``mapping`` function performs that processing. If the function indicates that the processing was unsuccessful (due to a parse error, for example) then the mapping is tried again with another value. This allows a robust 'fall back to defaults' behaviour to be implemented somewhat automatically. The first value that is tried is the user's setting for the key. If the mapping function fails to map this value, other values may be tried in an unspecified order (system or site defaults, translated schema default values, untranslated schema default values, etc). If the mapping function fails for all possible values, one additional attempt is made: the mapping function is called with a :const:`None` value. If the mapping function still indicates failure at this point then the application will be aborted. The result parameter for the ``mapping`` function is pointed to a :obj:`~gi.repository.gpointer` which is initially set to :const:`None`. The same pointer is given to each invocation of ``mapping``\. The final value of that :obj:`~gi.repository.gpointer` is what is returned by this function. :const:`None` is valid; it is returned just as any other value would be. :param key: the key to get the value for :param mapping: the function to map the value in the settings database to the value used by the application :param user_data: user data for ``mapping`` .. method:: get_range(key: str) -> ~gi.repository.GLib.Variant Queries the range of a key. .. versionadded:: 2.28 .. deprecated:: 2.40 Use :func:`~gi.repository.Gio.SettingsSchemaKey.get_range` instead. :param key: the key to query the range of .. method:: get_string(key: str) -> str Gets the value that is stored at ``key`` in ``settings``\. A convenience variant of :func:`~gi.repository.Gio.Settings.get` for strings. It is a programmer error to give a ``key`` that isn't specified as having a string type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: get_strv(key: str) -> list[str] A convenience variant of :func:`~gi.repository.Gio.Settings.get` for string arrays. It is a programmer error to give a ``key`` that isn't specified as having an array of strings type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: get_uint(key: str) -> int Gets the value that is stored at ``key`` in ``settings``\. A convenience variant of :func:`~gi.repository.Gio.Settings.get` for 32-bit unsigned integers. It is a programmer error to give a ``key`` that isn't specified as having a uint32 type in the schema for ``settings``\. .. versionadded:: 2.30 :param key: the key to get the value for .. method:: get_uint64(key: str) -> int Gets the value that is stored at ``key`` in ``settings``\. A convenience variant of :func:`~gi.repository.Gio.Settings.get` for 64-bit unsigned integers. It is a programmer error to give a ``key`` that isn't specified as having a uint64 type in the schema for ``settings``\. .. versionadded:: 2.50 :param key: the key to get the value for .. method:: get_user_value(key: str) -> ~gi.repository.GLib.Variant | None Checks the "user value" of a key, if there is one. The user value of a key is the last value that was set by the user. After calling :func:`~gi.repository.Gio.Settings.reset` this function should always return :const:`None` (assuming something is not wrong with the system configuration). It is possible that :func:`~gi.repository.Gio.Settings.get_value` will return a different value than this function. This can happen in the case that the user set a value for a key that was subsequently locked down by the system administrator -- this function will return the user's old value. This function may be useful for adding a "reset" option to a UI or for providing indication that a particular value has been changed. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings``\. .. versionadded:: 2.40 :param key: the key to get the user value for .. method:: get_value(key: str) -> ~gi.repository.GLib.Variant Gets the value that is stored in ``settings`` for ``key``\. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the key to get the value for .. method:: is_writable(name: str) -> bool Finds out if a key can be written or not .. versionadded:: 2.26 :param name: the name of a key .. method:: keys() .. method:: list_children() -> list[str] Gets the list of children on ``settings``\. The list is exactly the list of strings for which it is not an error to call :func:`~gi.repository.Gio.Settings.get_child`. There is little reason to call this function from "normal" code, since you should already know what children are in your schema. This function may still be useful there for introspection reasons, however. You should free the return value with :func:`~gi.repository.GLib.strfreev` when you are done with it. .. method:: list_keys() -> list[str] Introspects the list of keys on ``settings``\. You should probably not be calling this function from "normal" code (since you should already know what keys are in your schema). This function is intended for introspection reasons. You should free the return value with :func:`~gi.repository.GLib.strfreev` when you are done with it. .. deprecated:: 2.46 Use :func:`~gi.repository.Gio.SettingsSchema.list_keys` instead. .. classmethod:: list_relocatable_schemas() -> list[str] Deprecated. .. versionadded:: 2.28 .. deprecated:: 2.40 Use :func:`~gi.repository.Gio.SettingsSchemaSource.list_schemas` instead .. classmethod:: list_schemas() -> list[str] Deprecated. .. versionadded:: 2.26 .. deprecated:: 2.40 Use :func:`~gi.repository.Gio.SettingsSchemaSource.list_schemas` instead. If you used :func:`~gi.repository.Gio.Settings.list_schemas` to check for the presence of a particular schema, use :func:`~gi.repository.Gio.SettingsSchemaSource.lookup` instead of your whole loop. .. method:: range_check(key: str, value: ~gi.repository.GLib.Variant) -> bool Checks if the given ``value`` is of the correct type and within the permitted range for ``key``\. .. versionadded:: 2.28 .. deprecated:: 2.40 Use :func:`~gi.repository.Gio.SettingsSchemaKey.range_check` instead. :param key: the key to check :param value: the value to check .. method:: reset(key: str) -> None Resets ``key`` to its default value. This call resets the key, as much as possible, to its default value. That might be the value specified in the schema or the one set by the administrator. :param key: the name of a key .. method:: revert() -> None Reverts all non-applied changes to the settings. This function does nothing unless ``settings`` is in 'delay-apply' mode; see :func:`~gi.repository.Gio.Settings.delay`. In the normal case settings are always applied immediately. Change notifications will be emitted for affected keys. .. method:: set_boolean(key: str, value: bool) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for booleans. It is a programmer error to give a ``key`` that isn't specified as having a boolean type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the name of the key to set :param value: the value to set it to .. method:: set_double(key: str, value: float) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for doubles. It is a programmer error to give a ``key`` that isn't specified as having a 'double' type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the name of the key to set :param value: the value to set it to .. method:: set_enum(key: str, value: int) -> bool Looks up the enumerated type nick for ``value`` and writes it to ``key``\, within ``settings``\. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings`` or is not marked as an enumerated type, or for ``value`` not to be a valid value for the named type. After performing the write, accessing ``key`` directly with :func:`~gi.repository.Gio.Settings.get_string` will return the 'nick' associated with ``value``\. :param key: a key, within ``settings`` :param value: an enumerated value .. method:: set_flags(key: str, value: int) -> bool Looks up the flags type nicks for the bits specified by ``value``\, puts them in an array of strings and writes the array to ``key``\, within ``settings``\. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings`` or is not marked as a flags type, or for ``value`` to contain any bits that are not value for the named type. After performing the write, accessing ``key`` directly with :func:`~gi.repository.Gio.Settings.get_strv` will return an array of 'nicks'; one for each bit in ``value``\. :param key: a key, within ``settings`` :param value: a flags value .. method:: set_int(key: str, value: int) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for 32-bit integers. It is a programmer error to give a ``key`` that isn't specified as having a int32 type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the name of the key to set :param value: the value to set it to .. method:: set_int64(key: str, value: int) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for 64-bit integers. It is a programmer error to give a ``key`` that isn't specified as having a int64 type in the schema for ``settings``\. .. versionadded:: 2.50 :param key: the name of the key to set :param value: the value to set it to .. method:: set_string(key: str, value: str) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for strings. It is a programmer error to give a ``key`` that isn't specified as having a string type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the name of the key to set :param value: the value to set it to .. method:: set_strv(key: str, value: list[str] | None = None) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for string arrays. If ``value`` is :const:`None`, then ``key`` is set to be the empty array. It is a programmer error to give a ``key`` that isn't specified as having an array of strings type in the schema for ``settings``\. .. versionadded:: 2.26 :param key: the name of the key to set :param value: the value to set it to, or :const:`None` .. method:: set_uint(key: str, value: int) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for 32-bit unsigned integers. It is a programmer error to give a ``key`` that isn't specified as having a uint32 type in the schema for ``settings``\. .. versionadded:: 2.30 :param key: the name of the key to set :param value: the value to set it to .. method:: set_uint64(key: str, value: int) -> bool Sets ``key`` in ``settings`` to ``value``\. A convenience variant of :func:`~gi.repository.Gio.Settings.set` for 64-bit unsigned integers. It is a programmer error to give a ``key`` that isn't specified as having a uint64 type in the schema for ``settings``\. .. versionadded:: 2.50 :param key: the name of the key to set :param value: the value to set it to .. method:: set_value(key: str, value: ~gi.repository.GLib.Variant) -> bool Sets ``key`` in ``settings`` to ``value``\. It is a programmer error to give a ``key`` that isn't contained in the schema for ``settings`` or for ``value`` to have the incorrect type, per the schema. If ``value`` is floating then this function consumes the reference. .. versionadded:: 2.26 :param key: the name of the key to set :param value: a :obj:`~gi.repository.GLib.Variant` of the correct type .. classmethod:: sync() -> None Ensures that all pending operations are complete for the default backend. Writes made to a :obj:`~gi.repository.Gio.Settings` are handled asynchronously. For this reason, it is very unlikely that the changes have it to disk by the time :func:`~gi.repository.Gio.Settings.set` returns. This call will block until all of the writes have made it to the backend. Since the mainloop is not running, no change notifications will be dispatched during this call (but some may be queued by the time the call is done). .. classmethod:: unbind(property: str) -> None Removes an existing binding for ``property`` on ``object``\. Note that bindings are automatically removed when the object is finalized, so it is rarely necessary to call this function. .. versionadded:: 2.26 :param property: the property whose binding is removed Properties ---------- .. rst-class:: interim-class .. class:: Settings :no-index: .. attribute:: props.backend :type: ~gi.repository.Gio.SettingsBackend The type of the None singleton. .. attribute:: props.delay_apply :type: bool The type of the None singleton. .. versionadded:: 2.28 .. attribute:: props.has_unapplied :type: bool The type of the None singleton. .. attribute:: props.path :type: str The type of the None singleton. .. attribute:: props.schema :type: str The type of the None singleton. .. deprecated:: 2.32 Use the 'schema-id' property instead. In a future version, this property may instead refer to a :obj:`~gi.repository.Gio.SettingsSchema`\. .. attribute:: props.schema_id :type: str The type of the None singleton. .. attribute:: props.settings_schema :type: ~gi.repository.Gio.SettingsSchema The type of the None singleton. Signals ------- .. rst-class:: interim-class .. class:: Settings.signals :no-index: .. method:: change_event(keys: list[int] | None = None) -> bool The type of the None singleton. :param keys: an array of :obj:`~gi.repository.GLib.Quark` for the changed keys, or :const:`None` .. method:: changed(key: str) -> None The type of the None singleton. :param key: the name of the key that changed .. method:: writable_change_event(key: int) -> bool The type of the None singleton. :param key: the quark of the key, or 0 .. method:: writable_changed(key: str) -> None The type of the None singleton. :param key: the key Virtual Methods --------------- .. rst-class:: interim-class .. class:: Settings :no-index: .. method:: do_change_event(keys: int, n_keys: int) -> bool The type of the None singleton. :param keys: :param n_keys: .. method:: do_changed(key: str) -> None The type of the None singleton. :param key: .. method:: do_writable_change_event(key: int) -> bool The type of the None singleton. :param key: .. method:: do_writable_changed(key: str) -> None The type of the None singleton. :param key: Fields ------ .. rst-class:: interim-class .. class:: Settings :no-index: .. attribute:: parent_instance .. attribute:: priv