> For the complete documentation index, see [llms.txt](https://threadforge.gitbook.io/threadlink-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://threadforge.gitbook.io/threadlink-documentation/reference/iris-events.md).

# Native Iris Events

Values are ordinals allocated in the order listed, from `Iris.Events.Native.txt`; project and module events follow. The delegate is the type that subscribers state and publishers use (see [Iris](/threadlink-documentation/engineer-reference/iris.md)). For `Func` events, the "provider" column names who must subscribe the single listener.

| Value | Event                           | Delegate                                             | Publisher                                                         | Provider / typical listener    |
| ----- | ------------------------------- | ---------------------------------------------------- | ----------------------------------------------------------------- | ------------------------------ |
| 0     | `OnNativeSubsystemRegistration` | `Func<List<IThreadlinkSubsystem>>`                   | Core deployment                                                   | `NativeSubsystemsConfig`       |
| 1     | `OnUserSubsystemRegistration`   | `Func<List<IThreadlinkSubsystem>>`                   | Core deployment                                                   | `UserSubsystemsConfig`         |
| 2     | `OnCoreDeployed`                | `Action<Threadlink>`                                 | Core deployment                                                   | Aura; project code             |
| 3     | `OnUpdate`                      | `Action`                                             | `ThreadlinkPlayerLoop` (Native mode) or the project (Custom mode) | Chronos, Aura, interfaces      |
| 4     | `OnFixedUpdate`                 | `Action`                                             | As `OnUpdate`                                                     | Chronos                        |
| 5     | `OnLateUpdate`                  | `Action`                                             | As `OnUpdate`                                                     | Interfaces                     |
| 6     | `OnPlaytimeCountTick`           | `Action<float>`                                      | Chronos                                                           | Project code                   |
| 7     | `OnGamePauseRequested`          | `Action`                                             | Project code                                                      | Project code; no framework use |
| 8     | `OnGameResumeRequested`         | `Action`                                             | Project code                                                      | Project code; no framework use |
| 9     | `OnGamePaused`                  | `Action`                                             | Chronos                                                           | Project code                   |
| 10    | `OnGameResumed`                 | `Action`                                             | Chronos                                                           | Project code                   |
| 11    | `OnInputDeviceChanged`          | `Action<Dextra.InputDevice>`                         | Dextra                                                            | `DextraInputIcon`              |
| 12    | `OnUICancelled`                 | `Action<UserInterface>`                              | Dextra's UI stack                                                 | Project code                   |
| 13    | `OnUIElementSelected`           | `Action<GameObject>`                                 | Dextra                                                            | Project code                   |
| 14    | `OnInteract`                    | `Func<bool>`                                         | Project code, typically from an input action                      | The interactable in range      |
| 15    | `OnInteractableDetected`        | `Action<Interactable2D>` or `Action<Interactable3D>` | `InteractablesDetector2D` / `InteractablesDetector3D`             | Project code                   |
| 16    | `OnInteractableOutOfRange`      | `Action<Interactable2D>` or `Action<Interactable3D>` | `InteractablesDetector2D` / `InteractablesDetector3D`             | Project code                   |
| 17    | `OnSceneResident`               | `Action<Nexus.ISceneEntry>`                          | Nexus                                                             | Project code                   |
| 18    | `OnSceneUnloading`              | `Action<Nexus.ISceneEntry>`                          | Nexus                                                             | Project code                   |
| 19    | `OnDisplayFaderAsync`           | `Func<UniTask>`                                      | Nexus                                                             | The project's fader            |
| 20    | `OnHideFaderAsync`              | `Func<UniTask>`                                      | Nexus                                                             | The project's fader            |
| 21    | `OnDisplayLoadingScreenAsync`   | `Func<UniTask>`                                      | Nexus                                                             | The project's loading screen   |
| 22    | `OnHideLoadingScreenAsync`      | `Func<UniTask>`                                      | Nexus                                                             | The project's loading screen   |
| 23    | `OnScenePresented`              | `Action<Nexus.ISceneEntry>`                          | Nexus                                                             | Aura; project code             |
| 24    | `OnSceneLoaded`                 | `Action<Nexus.SceneLoad>`                            | Nexus                                                             | Project code                   |
| 25    | `OnSceneUnloaded`               | `Action<Scene>`                                      | Nexus                                                             | Project code                   |
| 26    | `OnSentinelStateChanged`        | `Action<Sentinel>`                                   | Sentinel                                                          | Project code                   |

The interactable detection events carry the detector's concrete interactable type: a 2D detector publishes `Interactable2D`, a 3D detector `Interactable3D`. A subscriber states the one it expects.