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API > API/Editor > API/Editor/UnrealEd > API/Editor/UnrealEd/STreeView > API/Editor/UnrealEd/STreeView/FArguments
References
| Module | UnrealEd |
| Header | /Engine/Source/Runtime/Slate/Public/Widgets/Views/STreeView.h |
| Include | #include "Widgets/Views/STreeView.h" |
WidgetArgsType & OnExpansionChanged
&40;
const FOnExpansionChanged & InDelegate
&41;