Class RegisterUpdateCallbackExtensions

Extensions to register a VisualElement update callback. This callback will be invoked when App UI main loop is updating. At runtime, the callback will be invoked once per frame. In the Editor, the callback will be invoked once per Editor update.

Inheritance

object

RegisterUpdateCallbackExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Unity.AppUI.UI

Assembly: Unity.AppUI.dll

Syntax

public static class RegisterUpdateCallbackExtensions

Methods

RegisterUpdateCallback(VisualElement, EventCallback<UpdateEvent>)

Register a callback which will be invoked when App UI main loop is updating. At runtime, the callback will be invoked once per frame. In the Editor, the callback will be invoked once per Editor update.

Declaration

[Preserve]
public static bool RegisterUpdateCallback(this VisualElement control, EventCallback<UpdateEvent> callback)

Parameters

Type	Name	Description
VisualElement	control	The UI component.
EventCallback<UpdateEvent>	callback	The callback.

Returns

Type	Description
bool	True if the UI component can handle callbacks, False otherwise.

UnregisterUpdateCallback(VisualElement, EventCallback<UpdateEvent>)

Unregister a callback which has been invoked when App UI main loop is updating. At runtime, the callback will be invoked once per frame. In the Editor, the callback will be invoked once per Editor update.

Declaration

[Preserve]
public static bool UnregisterUpdateCallback(this VisualElement control, EventCallback<UpdateEvent> callback)

Parameters

Type	Name	Description
VisualElement	control	The UI component.
EventCallback<UpdateEvent>	callback	The callback.

Returns

Type	Description
bool	True if the UI component can handle callbacks, False otherwise.