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godot-docs-l10n/classes/it/class_openxrextensionwrapper.rst
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.. _class_OpenXRExtensionWrapper:
OpenXRExtensionWrapper
======================
**Eredita:** :ref:`Object<class_Object>`
**Ereditato da:** :ref:`OpenXRAndroidThreadSettingsExtension<class_OpenXRAndroidThreadSettingsExtension>`, :ref:`OpenXRExtensionWrapperExtension<class_OpenXRExtensionWrapperExtension>`, :ref:`OpenXRFrameSynthesisExtension<class_OpenXRFrameSynthesisExtension>`, :ref:`OpenXRFutureExtension<class_OpenXRFutureExtension>`, :ref:`OpenXRRenderModelExtension<class_OpenXRRenderModelExtension>`, :ref:`OpenXRSpatialAnchorCapability<class_OpenXRSpatialAnchorCapability>`, :ref:`OpenXRSpatialEntityExtension<class_OpenXRSpatialEntityExtension>`, :ref:`OpenXRSpatialMarkerTrackingCapability<class_OpenXRSpatialMarkerTrackingCapability>`, :ref:`OpenXRSpatialPlaneTrackingCapability<class_OpenXRSpatialPlaneTrackingCapability>`
Consente di implementare estensioni OpenXR con GDExtension.
.. rst-class:: classref-introduction-group
Descrizione
----------------------
**OpenXRExtensionWrapper** allows implementing OpenXR extensions with GDExtension. The extension should be registered with :ref:`register_extension_wrapper()<class_OpenXRExtensionWrapper_method_register_extension_wrapper>`.
When :ref:`OpenXRInterface<class_OpenXRInterface>` is initialized as the primary interface and any :ref:`Viewport<class_Viewport>` has :ref:`Viewport.use_xr<class_Viewport_property_use_xr>` set to ``true``, OpenXR will become involved in Godot's rendering process. If :ref:`ProjectSettings.rendering/driver/threads/thread_model<class_ProjectSettings_property_rendering/driver/threads/thread_model>` is set to "Separate", Godot's renderer will run on its own thread, and special care must be taken in all **OpenXRExtensionWrapper**\ s in order to prevent crashes or unexpected behavior. Some virtual methods will be called on the render thread, and any data they access should not be directly written to on the main thread. This is to prevent two potential issues:
1. Changes intended for the next frame, taking effect on the current frame. When using the "Separate" thread model, the main thread will immediately start working on the next frame while the render thread may still be rendering the current frame. If the main thread changes anything used by the render thread directly, the change could end up being used one frame earlier than intended.
2. Reading and writing to the same data at the same time from different threads can lead to the render thread using data in an invalid state.
In most cases, the solution is to use :ref:`RenderingServer.call_on_render_thread()<class_RenderingServer_method_call_on_render_thread>` to schedule :ref:`Callable<class_Callable>`\ s to write to any data used on the render thread. When using the "Separate" thread model, these :ref:`Callable<class_Callable>`\ s will run after the renderer finishes the current frame and before it starts rendering the next frame. When not using this mode, they'll run immediately, so it's recommended to always use :ref:`RenderingServer.call_on_render_thread()<class_RenderingServer_method_call_on_render_thread>` in these cases, which will allow your code to do the right thing regardless of the thread model.
Any virtual methods that run on the render thread will be noted below.
.. rst-class:: classref-reftable-group
Metodi
------------
.. table::
:widths: auto
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_get_composition_layer<class_OpenXRExtensionWrapper_private_method__get_composition_layer>`\ (\ index\: :ref:`int<class_int>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_get_composition_layer_count<class_OpenXRExtensionWrapper_private_method__get_composition_layer_count>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_get_composition_layer_order<class_OpenXRExtensionWrapper_private_method__get_composition_layer_order>`\ (\ index\: :ref:`int<class_int>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Dictionary<class_Dictionary>` | :ref:`_get_requested_extensions<class_OpenXRExtensionWrapper_private_method__get_requested_extensions>`\ (\ xr_version\: :ref:`int<class_int>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PackedStringArray<class_PackedStringArray>` | :ref:`_get_suggested_tracker_names<class_OpenXRExtensionWrapper_private_method__get_suggested_tracker_names>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Array<class_Array>`\[:ref:`Dictionary<class_Dictionary>`\] | :ref:`_get_viewport_composition_layer_extension_properties<class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_properties>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Dictionary<class_Dictionary>` | :ref:`_get_viewport_composition_layer_extension_property_defaults<class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_property_defaults>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_before_instance_created<class_OpenXRExtensionWrapper_private_method__on_before_instance_created>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`_on_event_polled<class_OpenXRExtensionWrapper_private_method__on_event_polled>`\ (\ event\: ``const void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_instance_created<class_OpenXRExtensionWrapper_private_method__on_instance_created>`\ (\ instance\: :ref:`int<class_int>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_instance_destroyed<class_OpenXRExtensionWrapper_private_method__on_instance_destroyed>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_main_swapchains_created<class_OpenXRExtensionWrapper_private_method__on_main_swapchains_created>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_post_draw_viewport<class_OpenXRExtensionWrapper_private_method__on_post_draw_viewport>`\ (\ viewport\: :ref:`RID<class_RID>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_pre_draw_viewport<class_OpenXRExtensionWrapper_private_method__on_pre_draw_viewport>`\ (\ viewport\: :ref:`RID<class_RID>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_pre_render<class_OpenXRExtensionWrapper_private_method__on_pre_render>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_process<class_OpenXRExtensionWrapper_private_method__on_process>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_register_metadata<class_OpenXRExtensionWrapper_private_method__on_register_metadata>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_session_created<class_OpenXRExtensionWrapper_private_method__on_session_created>`\ (\ session\: :ref:`int<class_int>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_session_destroyed<class_OpenXRExtensionWrapper_private_method__on_session_destroyed>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_exiting<class_OpenXRExtensionWrapper_private_method__on_state_exiting>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_focused<class_OpenXRExtensionWrapper_private_method__on_state_focused>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_idle<class_OpenXRExtensionWrapper_private_method__on_state_idle>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_loss_pending<class_OpenXRExtensionWrapper_private_method__on_state_loss_pending>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_ready<class_OpenXRExtensionWrapper_private_method__on_state_ready>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_stopping<class_OpenXRExtensionWrapper_private_method__on_state_stopping>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_synchronized<class_OpenXRExtensionWrapper_private_method__on_state_synchronized>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_state_visible<class_OpenXRExtensionWrapper_private_method__on_state_visible>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_sync_actions<class_OpenXRExtensionWrapper_private_method__on_sync_actions>`\ (\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_on_viewport_composition_layer_destroyed<class_OpenXRExtensionWrapper_private_method__on_viewport_composition_layer_destroyed>`\ (\ layer\: ``const void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_prepare_view_configuration<class_OpenXRExtensionWrapper_private_method__prepare_view_configuration>`\ (\ view_count\: :ref:`int<class_int>`\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`_print_view_configuration_info<class_OpenXRExtensionWrapper_private_method__print_view_configuration_info>`\ (\ view\: :ref:`int<class_int>`\ ) |virtual| |const| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_android_surface_swapchain_create_info_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_android_surface_swapchain_create_info_and_get_next_pointer>`\ (\ property_values\: :ref:`Dictionary<class_Dictionary>`, next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_frame_end_info_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_frame_end_info_and_get_next_pointer>`\ (\ next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_frame_wait_info_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_frame_wait_info_and_get_next_pointer>`\ (\ next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_hand_joint_locations_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_hand_joint_locations_and_get_next_pointer>`\ (\ hand_index\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_instance_create_info_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_instance_create_info_and_get_next_pointer>`\ (\ xr_version\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_projection_views_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_projection_views_and_get_next_pointer>`\ (\ view_index\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_reference_space_create_info_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_reference_space_create_info_and_get_next_pointer>`\ (\ reference_space_type\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_session_create_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_session_create_and_get_next_pointer>`\ (\ next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_swapchain_create_info_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_swapchain_create_info_and_get_next_pointer>`\ (\ next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_system_properties_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_system_properties_and_get_next_pointer>`\ (\ next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_view_configuration_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_view_configuration_and_get_next_pointer>`\ (\ view\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_view_locate_info_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_view_locate_info_and_get_next_pointer>`\ (\ next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`_set_viewport_composition_layer_and_get_next_pointer<class_OpenXRExtensionWrapper_private_method__set_viewport_composition_layer_and_get_next_pointer>`\ (\ layer\: ``const void*``, property_values\: :ref:`Dictionary<class_Dictionary>`, next_pointer\: ``void*``\ ) |virtual| |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`OpenXRAPIExtension<class_OpenXRAPIExtension>` | :ref:`get_openxr_api<class_OpenXRExtensionWrapper_method_get_openxr_api>`\ (\ ) |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`register_extension_wrapper<class_OpenXRExtensionWrapper_method_register_extension_wrapper>`\ (\ ) |
+------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
.. rst-class:: classref-section-separator
----
.. rst-class:: classref-descriptions-group
Descrizioni dei metodi
--------------------------------------------
.. _class_OpenXRExtensionWrapper_private_method__get_composition_layer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_get_composition_layer**\ (\ index\: :ref:`int<class_int>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__get_composition_layer>`
Returns a pointer to an ``XrCompositionLayerBaseHeader`` struct to provide the given composition layer.
This will only be called if the extension previously registered itself with :ref:`OpenXRAPIExtension.register_composition_layer_provider()<class_OpenXRAPIExtension_method_register_composition_layer_provider>`.
\ **Note:** This virtual method will be called on the render thread. Additionally, the data it returns will be used shortly after this method is called, so it needs to remain valid until the next time :ref:`_on_pre_render()<class_OpenXRExtensionWrapper_private_method__on_pre_render>` runs.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__get_composition_layer_count:
.. rst-class:: classref-method
:ref:`int<class_int>` **_get_composition_layer_count**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__get_composition_layer_count>`
Returns the number of composition layers this extension wrapper provides via :ref:`_get_composition_layer()<class_OpenXRExtensionWrapper_private_method__get_composition_layer>`.
This will only be called if the extension previously registered itself with :ref:`OpenXRAPIExtension.register_composition_layer_provider()<class_OpenXRAPIExtension_method_register_composition_layer_provider>`.
\ **Note:** This virtual method will be called on the render thread. Additionally, the data it returns will be used shortly after this method is called, so it needs to remain valid until the next time :ref:`_on_pre_render()<class_OpenXRExtensionWrapper_private_method__on_pre_render>` runs.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__get_composition_layer_order:
.. rst-class:: classref-method
:ref:`int<class_int>` **_get_composition_layer_order**\ (\ index\: :ref:`int<class_int>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__get_composition_layer_order>`
Returns an integer that will be used to sort the given composition layer provided via :ref:`_get_composition_layer()<class_OpenXRExtensionWrapper_private_method__get_composition_layer>`. Lower numbers will move the layer to the front of the list, and higher numbers to the end. The default projection layer has an order of ``0``, so layers provided by this method should probably be above or below (but not exactly) ``0``.
This will only be called if the extension previously registered itself with :ref:`OpenXRAPIExtension.register_composition_layer_provider()<class_OpenXRAPIExtension_method_register_composition_layer_provider>`.
\ **Note:** This virtual method will be called on the render thread. Additionally, the data it returns will be used shortly after this method is called, so it needs to remain valid until the next time :ref:`_on_pre_render()<class_OpenXRExtensionWrapper_private_method__on_pre_render>` runs.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__get_requested_extensions:
.. rst-class:: classref-method
:ref:`Dictionary<class_Dictionary>` **_get_requested_extensions**\ (\ xr_version\: :ref:`int<class_int>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__get_requested_extensions>`
Returns a :ref:`Dictionary<class_Dictionary>` of OpenXR extensions related to this extension. ``xr_version`` specifies the OpenXR version we're instantiating. This will be zero if the editor requests this list to flag supported features. The :ref:`Dictionary<class_Dictionary>` should contain the name of the extension, mapped to a ``bool *`` cast to an integer:
- If the ``bool *`` is a ``nullptr`` this extension is mandatory.
- If the ``bool *`` points to a boolean, the boolean will be updated to ``true`` if the extension is enabled.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__get_suggested_tracker_names:
.. rst-class:: classref-method
:ref:`PackedStringArray<class_PackedStringArray>` **_get_suggested_tracker_names**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__get_suggested_tracker_names>`
Restituisce un :ref:`PackedStringArray<class_PackedStringArray>` di nomi di tracciatori posizionali utilizzati all'interno del wrapper d'estensione.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_properties:
.. rst-class:: classref-method
:ref:`Array<class_Array>`\[:ref:`Dictionary<class_Dictionary>`\] **_get_viewport_composition_layer_extension_properties**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_properties>`
Gets an array of :ref:`Dictionary<class_Dictionary>`\ s that represent properties, just like :ref:`Object._get_property_list()<class_Object_private_method__get_property_list>`, that will be added to :ref:`OpenXRCompositionLayer<class_OpenXRCompositionLayer>` nodes.
\ **Note:** This virtual method will be called on the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_property_defaults:
.. rst-class:: classref-method
:ref:`Dictionary<class_Dictionary>` **_get_viewport_composition_layer_extension_property_defaults**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_property_defaults>`
Ottiene un :ref:`Dictionary<class_Dictionary>` contenente i valori predefiniti per le proprietà restituite da :ref:`_get_viewport_composition_layer_extension_properties()<class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_properties>`.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_before_instance_created:
.. rst-class:: classref-method
|void| **_on_before_instance_created**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_before_instance_created>`
Called before the OpenXR instance is created.
\ **Note:** This virtual method will be called on the main thread, however, it will be called *before* OpenXR becomes involved in rendering, so it is safe to write to data that will be used by the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_event_polled:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **_on_event_polled**\ (\ event\: ``const void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_event_polled>`
Chiamato quando c'è un evento OpenXR da elaborare. Se implementato, restituisci ``true`` se l'evento è stato gestito, altrimenti restituisci ``false``.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_instance_created:
.. rst-class:: classref-method
|void| **_on_instance_created**\ (\ instance\: :ref:`int<class_int>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_instance_created>`
Called right after the OpenXR instance is created.
\ **Note:** This virtual method will be called on the main thread, however, it will be called *before* OpenXR becomes involved in rendering, so it is safe to write to data that will be used by the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_instance_destroyed:
.. rst-class:: classref-method
|void| **_on_instance_destroyed**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_instance_destroyed>`
Called right before the OpenXR instance is destroyed.
\ **Note:** This virtual method will be called on the main thread, however, it will be called *after* OpenXR is done being involved in rendering, so it is safe to write to data that was used by the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_main_swapchains_created:
.. rst-class:: classref-method
|void| **_on_main_swapchains_created**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_main_swapchains_created>`
Called right after the main swapchains are (re)created.
\ **Note:** This virtual method will be called on the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_post_draw_viewport:
.. rst-class:: classref-method
|void| **_on_post_draw_viewport**\ (\ viewport\: :ref:`RID<class_RID>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_post_draw_viewport>`
Called right after the given viewport is rendered.
\ **Note:** The draw commands might only be queued at this point, not executed.
\ **Note:** This virtual method will be called on the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_pre_draw_viewport:
.. rst-class:: classref-method
|void| **_on_pre_draw_viewport**\ (\ viewport\: :ref:`RID<class_RID>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_pre_draw_viewport>`
Called right before the given viewport is rendered.
\ **Note:** This virtual method will be called on the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_pre_render:
.. rst-class:: classref-method
|void| **_on_pre_render**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_pre_render>`
Called right before the XR viewports begin their rendering step.
\ **Note:** This virtual method will be called on the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_process:
.. rst-class:: classref-method
|void| **_on_process**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_process>`
Chiamato come parte della gestione del processo OpenXR. Questo avviene subito prima delle fasi di elaborazione generale e della fisica del ciclo principale. Durante questa fase i dati del controller sono interrogati e resi disponibili alla logica del gioco.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_register_metadata:
.. rst-class:: classref-method
|void| **_on_register_metadata**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_register_metadata>`
Consente alle estensioni di registrare metadati aggiuntivi per i controller. Questa funzione viene chiamata anche quando l'API OpenXR non è costruita, poiché i metadati devono essere disponibili all'editor.
Le estensioni devono anche fornire metadati a prescindere dal fatto che siano supportate o meno sul sistema host. I dati dei controller sono utilizzati per configurare le mappe di azioni per gli utenti che potrebbero avere accesso all'hardware pertinente.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_session_created:
.. rst-class:: classref-method
|void| **_on_session_created**\ (\ session\: :ref:`int<class_int>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_session_created>`
Called right after the OpenXR session is created.
\ **Note:** This virtual method will be called on the main thread, however, it will be called *before* OpenXR becomes involved in rendering, so it is safe to write to data that will be used by the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_session_destroyed:
.. rst-class:: classref-method
|void| **_on_session_destroyed**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_session_destroyed>`
Called right before the OpenXR session is destroyed.
\ **Note:** This virtual method will be called on the main thread, however, it will be called *after* OpenXR is done being involved in rendering, so it is safe to write to data that was used by the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_state_exiting:
.. rst-class:: classref-method
|void| **_on_state_exiting**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_exiting>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in uscita.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__on_state_focused:
.. rst-class:: classref-method
|void| **_on_state_focused**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_focused>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in focalizzato. Questo stato è lo stato attivo quando il gioco è in esecuzione.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__on_state_idle:
.. rst-class:: classref-method
|void| **_on_state_idle**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_idle>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in inattivo.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__on_state_loss_pending:
.. rst-class:: classref-method
|void| **_on_state_loss_pending**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_loss_pending>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in perdita in sospeso.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_state_ready:
.. rst-class:: classref-method
|void| **_on_state_ready**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_ready>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in pronto. Ciò significa che OpenXR è pronto a configurare la sessione.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_state_stopping:
.. rst-class:: classref-method
|void| **_on_state_stopping**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_stopping>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in arresto.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__on_state_synchronized:
.. rst-class:: classref-method
|void| **_on_state_synchronized**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_synchronized>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in sincronizzato. OpenXR torna a questo stato anche quando l'applicazione perde il focus.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__on_state_visible:
.. rst-class:: classref-method
|void| **_on_state_visible**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_state_visible>`
Chiamato quando lo stato della sessione OpenXR viene cambiato in visibile. Ciò significa che OpenXR è ora pronto a ricevere i frame.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__on_sync_actions:
.. rst-class:: classref-method
|void| **_on_sync_actions**\ (\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_sync_actions>`
Chiamato quando OpenXR ha effettuato la sua sincronizzazione di azioni.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__on_viewport_composition_layer_destroyed:
.. rst-class:: classref-method
|void| **_on_viewport_composition_layer_destroyed**\ (\ layer\: ``const void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__on_viewport_composition_layer_destroyed>`
Chiamato quando un livello di composizione creato tramite :ref:`OpenXRCompositionLayer<class_OpenXRCompositionLayer>` viene distrutto.
\ ``layer`` è un puntatore a una struttura ``XrCompositionLayerBaseHeader``.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__prepare_view_configuration:
.. rst-class:: classref-method
|void| **_prepare_view_configuration**\ (\ view_count\: :ref:`int<class_int>`\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__prepare_view_configuration>`
Called before :ref:`_set_view_configuration_and_get_next_pointer()<class_OpenXRExtensionWrapper_private_method__set_view_configuration_and_get_next_pointer>` to allow the extension to reserve data for the given number of views.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__print_view_configuration_info:
.. rst-class:: classref-method
|void| **_print_view_configuration_info**\ (\ view\: :ref:`int<class_int>`\ ) |virtual| |const| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__print_view_configuration_info>`
Called to allow an extension to print additional information about its view configuration, if applicable. This will only be called if verbose output is enabled.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__set_android_surface_swapchain_create_info_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_android_surface_swapchain_create_info_and_get_next_pointer**\ (\ property_values\: :ref:`Dictionary<class_Dictionary>`, next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_android_surface_swapchain_create_info_and_get_next_pointer>`
Add additional data structures to Android surface swapchains created by :ref:`OpenXRCompositionLayer<class_OpenXRCompositionLayer>`.
\ ``property_values`` contains the values of the properties returned by :ref:`_get_viewport_composition_layer_extension_properties()<class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_properties>`.
\ **Note:** This virtual method will be called on the render thread.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__set_frame_end_info_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_frame_end_info_and_get_next_pointer**\ (\ next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_frame_end_info_and_get_next_pointer>`
Add additional data structures to ``XrFrameEndInfo``.
This will only be called if the extension previously registered itself with :ref:`OpenXRAPIExtension.register_frame_info_extension()<class_OpenXRAPIExtension_method_register_frame_info_extension>`.
\ **Note:** This virtual method will be called on the render thread. Additionally, the data it returns will be used shortly after this method is called, so it needs to remain valid until the next time :ref:`_on_pre_render()<class_OpenXRExtensionWrapper_private_method__on_pre_render>` runs.
.. rst-class:: classref-item-separator
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.. _class_OpenXRExtensionWrapper_private_method__set_frame_wait_info_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_frame_wait_info_and_get_next_pointer**\ (\ next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_frame_wait_info_and_get_next_pointer>`
Add additional data structures to ``XrFrameWaitInfo``.
This will only be called if the extension previously registered itself with :ref:`OpenXRAPIExtension.register_frame_info_extension()<class_OpenXRAPIExtension_method_register_frame_info_extension>`.
\ **Note:** This virtual method will be called on the render thread.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_hand_joint_locations_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_hand_joint_locations_and_get_next_pointer**\ (\ hand_index\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_hand_joint_locations_and_get_next_pointer>`
Add additional data structures when each hand tracker is created.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_instance_create_info_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_instance_create_info_and_get_next_pointer**\ (\ xr_version\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_instance_create_info_and_get_next_pointer>`
Add additional data structures when the OpenXR instance is created. ``xr_version`` specifies the OpenXR version we're instantiating.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_projection_views_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_projection_views_and_get_next_pointer**\ (\ view_index\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_projection_views_and_get_next_pointer>`
Add additional data structures to the projection view of the given ``view_index``.
\ **Note:** This virtual method will be called on the render thread. Additionally, the data it returns will be used shortly after this method is called, so it needs to remain valid until the next time :ref:`_on_pre_render()<class_OpenXRExtensionWrapper_private_method__on_pre_render>` runs.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_reference_space_create_info_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_reference_space_create_info_and_get_next_pointer**\ (\ reference_space_type\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_reference_space_create_info_and_get_next_pointer>`
Add additional data structures to ``XrReferenceSpaceCreateInfo``.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_session_create_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_session_create_and_get_next_pointer**\ (\ next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_session_create_and_get_next_pointer>`
Add additional data structures when the OpenXR session is created.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_swapchain_create_info_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_swapchain_create_info_and_get_next_pointer**\ (\ next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_swapchain_create_info_and_get_next_pointer>`
Add additional data structures when creating OpenXR swapchains.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_system_properties_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_system_properties_and_get_next_pointer**\ (\ next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_system_properties_and_get_next_pointer>`
Add additional data structures when querying OpenXR system abilities.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_view_configuration_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_view_configuration_and_get_next_pointer**\ (\ view\: :ref:`int<class_int>`, next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_view_configuration_and_get_next_pointer>`
Add additional data structures when querying OpenXR view configuration.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_view_locate_info_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_view_locate_info_and_get_next_pointer**\ (\ next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_view_locate_info_and_get_next_pointer>`
Add additional data structures to ``XrViewLocateInfo``.
This will only be called if the extension previously registered itself with :ref:`OpenXRAPIExtension.register_frame_info_extension()<class_OpenXRAPIExtension_method_register_frame_info_extension>`.
\ **Note:** This virtual method will be called on the render thread. Additionally, the data it returns will be used shortly after this method is called, so it needs to remain valid until the next time :ref:`_on_pre_render()<class_OpenXRExtensionWrapper_private_method__on_pre_render>` runs.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_private_method__set_viewport_composition_layer_and_get_next_pointer:
.. rst-class:: classref-method
:ref:`int<class_int>` **_set_viewport_composition_layer_and_get_next_pointer**\ (\ layer\: ``const void*``, property_values\: :ref:`Dictionary<class_Dictionary>`, next_pointer\: ``void*``\ ) |virtual| :ref:`🔗<class_OpenXRExtensionWrapper_private_method__set_viewport_composition_layer_and_get_next_pointer>`
Add additional data structures to composition layers created by :ref:`OpenXRCompositionLayer<class_OpenXRCompositionLayer>`.
\ ``property_values`` contains the values of the properties returned by :ref:`_get_viewport_composition_layer_extension_properties()<class_OpenXRExtensionWrapper_private_method__get_viewport_composition_layer_extension_properties>`.
\ ``layer`` is a pointer to an ``XrCompositionLayerBaseHeader`` struct.
\ **Note:** This virtual method will be called on the render thread. Additionally, the data it returns will be used shortly after this method is called, so it needs to remain valid until the next time :ref:`_on_pre_render()<class_OpenXRExtensionWrapper_private_method__on_pre_render>` runs.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_method_get_openxr_api:
.. rst-class:: classref-method
:ref:`OpenXRAPIExtension<class_OpenXRAPIExtension>` **get_openxr_api**\ (\ ) :ref:`🔗<class_OpenXRExtensionWrapper_method_get_openxr_api>`
Restituisce l'estensione :ref:`OpenXRAPIExtension<class_OpenXRAPIExtension>` creata, che può essere utilizzata per accedere all'API dell'OpenXR.
.. rst-class:: classref-item-separator
----
.. _class_OpenXRExtensionWrapper_method_register_extension_wrapper:
.. rst-class:: classref-method
|void| **register_extension_wrapper**\ (\ ) :ref:`🔗<class_OpenXRExtensionWrapper_method_register_extension_wrapper>`
Registers the extension. This should happen at core module initialization level.
\ **Note:** This cannot be called once OpenXR has been initialized.
.. |virtual| replace:: :abbr:`virtual (Questo metodo dovrebbe solitamente essere sovrascritto dall'utente per aver un effetto.)`
.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
.. |const| replace:: :abbr:`const (Questo metodo non ha effetti collaterali. Non modifica alcuna variabile appartenente all'istanza.)`
.. |vararg| replace:: :abbr:`vararg (Questo metodo accetta qualsiasi numero di argomenti oltre a quelli descritti qui.)`
.. |constructor| replace:: :abbr:`constructor (Questo metodo è utilizzato per creare un tipo.)`
.. |static| replace:: :abbr:`static (Questo metodo non necessita di alcun'istanza per essere chiamato, quindi può essere chiamato direttamente usando il nome della classe.)`
.. |operator| replace:: :abbr:`operator (Questo metodo descrive un operatore valido da usare con questo tipo come operando di sinistra.)`
.. |bitfield| replace:: :abbr:`BitField (Questo valore è un intero composto da una maschera di bit dei seguenti flag.)`
.. |void| replace:: :abbr:`void (Nessun valore restituito.)`
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