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Unreal Engine C++ API Reference > Runtime > Engine > Engine
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Classes/Engine/LevelStreamingGCHelper.h |
| Include | #include "Engine/LevelStreamingGCHelper.h" |
Syntax
struct FLevelStreamingGCHelper
Remarks
Helper structure encapsulating functionality used to defer marking actors and their components as pending kill till right before garbage collection by registering a callback.
Functions
| Type | Name | Description | |
|---|---|---|---|
  |
void | Register with the garbage collector to receive callbacks pre and post garbage collection | |
  |
void | CancelUnloadRequest
(
ULevel* InLevel |
Cancel any pending unload requests for passed in Level. |
  |
void | Allows FLevelStreamingGCHelper to be used in a commandlet. | |
  |
int32 | ||
  |
void | RequestUnload
(
ULevel* InLevel |
Request to be unloaded. |
  |
void | TrashPackage
(
UPackage* InPackage |
Trash a package, making sure it will be reloaded if needed again by level streaming |
Typedefs
| Name | Description |
|---|---|
| FOnGCStreamedOutLevelsEvent | Called when streamed out levels are going to be garbage collected |
Constants
| Name | Description |
|---|---|
| bEnabledForCommandlet | Static bool allows FLevelStreamingGCHelper to be used in a commandlet |
| bIsPrepareStreamedOutLevelForGCDelayedToWorldTickEnd | Whether RequestUnload delayed its call to PrepareStreamedOutLevelForGC after world tick. |
| LevelPackageNames | Static set of level packages that have been marked by PrepareStreamedOutLevelsForGC |
| LevelsPendingUnload | Static array of levels that should be unloaded |
| NumberOfPreparedStreamedOutLevelsForGC | The number of unloaded levels prepared for the next GC (used by GetNumLevelsPendingPurge). |
| OnGCStreamedOutLevels |