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API > API/Runtime > API/Runtime/Slate > API/Runtime/Slate/Framework > API/Runtime/Slate/Framework/Docking > API/Runtime/Slate/Framework/Docking/FTabManager > API/Runtime/Slate/Framework/Docking/FTabManager/FPrivateApi
References
| Module | Slate |
| Header | /Engine/Source/Runtime/Slate/Public/Framework/Docking/TabManager.h |
| Include | #include "Framework/Docking/TabManager.h" |
| Source | /Engine/Source/Runtime/Slate/Private/Framework/Docking/TabManager.cpp |
void OnTabClosing
&40;
const TSharedRef< SDockTab > & TabBeingClosed
&41;