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API > API/Runtime > API/Runtime/SlateCore > API/Runtime/SlateCore/Application > API/Runtime/SlateCore/Application/FSlateApplicationBase
References
| Module | SlateCore |
| Header | /Engine/Source/Runtime/SlateCore/Public/Application/SlateApplicationBase.h |
| Include | #include "Application/SlateApplicationBase.h" |
FOnInvalidateAllWidgets & OnInvalidateAllWidgets&40;&41;