EventCallbackGroup
An object that can be registered on elements of a any type to rapidly register multiple event callbacks.
Read time 1 minuteLast updated 10 days ago
Definition
- Type: Struct
- Namespace: UnityEngine.UIElements
- Assembly: UnityEngine.UIElementsModule
public readonly struct EventCallbackGroup
Remarks
The same callback group can be registered on multiple different elements, resulting in effective memory sharing. Note that individual callbacks that are also part of a registered group should not be unregistered separately from the rest of their group.
Additional Resources: EventCallbackDefinition
Constructors
Constructor | Description |
|---|---|
| EventCallbackGroup(System.ReadOnlySpan{UnityEngine.UIElements.EventCallbackDefinition}) | Creates a callback group allowing the provided callbacks to be registered and unregistered all at once on any VisualElement. |
| EventCallbackGroup(UnityEngine.UIElements.EventCallbackDefinition[]) | Creates a callback group allowing the provided callbacks to be registered and unregistered all at once on any VisualElement. |
Methods
Method | Description |
|---|---|
| IsRegistered | Returns whether this group is registered for the given element. |
| Register | Adds all group event handlers to the given element. |
| Unregister | Removes all group event handlers from the given element. |