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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/FSubsystemCollectionBase
Description
Run the given operation on each registered subsystem. Any new subsystems registered during this operation will also be visited. It is not permitted to remove subsystems (e.g. by calling DeactivateExternalSubsystem) during this operation.
| Name | ForEachSubsystem |
| Type | function |
| Header File | /Engine/Source/Runtime/Engine/Public/Subsystems/SubsystemCollection.h |
| Include Path | #include "Subsystems/SubsystemCollection.h" |
| Source | /Engine/Source/Runtime/Engine/Private/Subsystems/SubsystemCollection.cpp |
void ForEachSubsystem
(
TFunctionRef < void *)> Operation
) const