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API > API/Runtime > API/Runtime/SlateCore > API/Runtime/SlateCore/Layout > API/Runtime/SlateCore/Layout/FArrangedChildren
References
| Module | SlateCore |
| Header | /Engine/Source/Runtime/SlateCore/Public/Layout/ArrangedChildren.h |
| Include | #include "Layout/ArrangedChildren.h" |
bool IsValidIndex
&40;
int32 Index
&41;