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API > API/Runtime > API/Runtime/Messaging > API/Runtime/Messaging/IMessageTracer
A delegate that is executed when the collection of known messages has changed.
| Name | FOnMessageAdded |
| Type | class |
| Header File | /Engine/Source/Runtime/Messaging/Public/IMessageTracer.h |
| Include Path | #include "IMessageTracer.h" |
Syntax
class FOnMessageAdded : public TBaseMulticastDelegate_OneParam< void, FMessageTracerMessageInfoRef >
Inheritance Hierarchy
- TBaseMulticastDelegate_OneParam< void, FMessageTracerMessageInfoRef > → IMessageTracer::FOnMessageAdded