# IAccessibilityNotificationDispatcher

> Sends accessibility notifications to the screen reader.

## Definition

* **Type:** Interface
* **Namespace:** [UnityEngine.Accessibility](/engine/6000.0/script-reference/unityengine/accessibility.md)
* **Assembly:** UnityEngine.AccessibilityModule

```csharp
public interface IAccessibilityNotificationDispatcher
```

## Methods

| Method                                                                                                                                   | Description                                                                                                                                                                                                                                                               |
| ---------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [SendAnnouncement](/engine/6000.0/script-reference/unityengine/accessibility/iaccessibilitynotificationdispatcher/sendannouncement.md)   | Sends a notification to the screen reader conveying an announcement. Use this notification to provide accessibility information about events that don't update the app's UI, or that update the UI only briefly.                                                          |
| [SendLayoutChanged](/engine/6000.0/script-reference/unityengine/accessibility/iaccessibilitynotificationdispatcher/sendlayoutchanged.md) | Sends a notification to the screen reader when the layout of a screen changes (for example, when an individual element appears or disappears). An optional parameter can be used to request the screen reader focus on a specific node after processing the notification. |
| [SendScreenChanged](/engine/6000.0/script-reference/unityengine/accessibility/iaccessibilitynotificationdispatcher/sendscreenchanged.md) | Sends a notification to the screen reader when the screen has changed considerably. An optional parameter can be used to request the screen reader focus on a specific node after processing the notification.                                                            |