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API > API/Plugins > API/Plugins/OnlineSubsystem > API/Plugins/OnlineSubsystem/Interfaces > API/Plugins/OnlineSubsystem/Interfaces/IOnlinePartySystem
References
| Module | OnlineSubsystem |
| Header | /Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlinePartyInterface.h |
| Include | #include "Interfaces/OnlinePartyInterface.h" |
virtual void TriggerOnPartySystemStateChangeDelegates
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EPartySystemState Param1
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