Version: 2019.4
LanguageEnglish
  • C#

CallbackEventHandler.RegisterCallback

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Declaration

public void RegisterCallback(EventCallback<TEventType> callback, UIElements.TrickleDown useTrickleDown);

Declaration

public void RegisterCallback(EventCallback<TEventType,TUserArgsType> callback, TUserArgsType userArgs, UIElements.TrickleDown useTrickleDown);

Parameters

callback The event handler to add.
useTrickleDown By default, this callback is called during the BubbleUp phase. Pass TrickleDown.TrickleDown to call this callback during the TrickleDown phase.
userArgs Data to pass to the callback.

Description

Adds an event handler to the instance. If the event handler has already been registered for the same phase (either TrickleDown or BubbleUp) then this method has no effect.

Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.

Copyright ©2022 Unity Technologies. Publication Date: 2022-06-03.
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