UAssetManager::Register_OnAddedAssetSearchRoot
#include "Engine/AssetManager.h"
Access: public
Description
Registers a callback that fires whenever a new asset search root is mounted at runtime, such as from a plugin or pak file. Pair with Unregister_OnAddedAssetSearchRoot to remove it.
Caveats & Gotchas
- • The delegate only fires for roots added after registration, not for search roots that already existed (like /Game) — check GetAssetSearchRoots() for the current state at registration time.
- • Always call Unregister_OnAddedAssetSearchRoot with the returned FDelegateHandle when your object is destroyed, or the AssetManager can call into a dangling delegate.
- • The passed-in FString has no trailing slash, unlike some other path APIs in the engine — don't assume you need to strip one.
Signature
FDelegateHandle Register_OnAddedAssetSearchRoot(FOnAddedAssetSearchRoot::FDelegate&& Delegate);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| Delegate | FOnAddedAssetSearchRoot::FDelegate&& | Callback invoked with the new root path (no trailing slash) whenever one is registered at runtime. | — |
Return Type
FDelegateHandle Example
Reacting to a newly mounted asset root C++
FDelegateHandle RootHandle = UAssetManager::Get().Register_OnAddedAssetSearchRoot(
FOnAddedAssetSearchRoot::FDelegate::CreateUObject(this, &AMyClass::OnAssetRootAdded));
// Later, e.g. in EndPlay:
UAssetManager::Get().Unregister_OnAddedAssetSearchRoot(RootHandle);Version History
Introduced in: unknown
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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