Version: Unity 6 Preview (6000.0)
LanguageEnglish
  • C#

EventInterestAttribute

class in UnityEngine.UIElements

/

Implemented in:UnityEngine.UIElementsModule

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Description

Optional attribute on overrides of CallbackEventHandler.HandleEventBubbleUp.

Use this to specify all the event types that these methods require to operate. If an override of one of these methods doesn't have any EventInterestAttribute, UI Toolkit will assume that the method doesn't have enough information on what event types it needs, and will conservatively send all incoming events to that method. It is generally a good idea to use the EventInterestAttribute attribute because it allows UI Toolkit to perform optimizations and not calculate all the information related to an event if it isn't used by the method that would receive it.

Constructors

EventInterestAttribute Use this constructor when the affected method uses only specific event types that can easily be determined at compile time. Multiple EventInterestAttribute can be used on the same method to add more type interests.