UKismetMathLibrary::ClassIsChildOf
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Returns true if TestClass is the same as ParentClass or is derived from it. Useful for runtime class hierarchy checks without requiring a Cast.
Caveats & Gotchas
- • Returns false if either parameter is None/null — not true — so validate your class references before calling if a null parent should be treated as 'is child of everything'.
- • Checks the full inheritance chain at runtime using UClass::IsChildOf, which walks the parent chain. This is generally fast but avoid calling it in tight per-frame loops on large hierarchies.
Signature
static ENGINE_API bool ClassIsChildOf(TSubclassOf<class UObject> TestClass, TSubclassOf<class UObject> ParentClass)Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| TestClass | TSubclassOf<class UObject> | The class to test. | — |
| ParentClass | TSubclassOf<class UObject> | The potential parent class. | — |
Return Type
bool Example
Gate spawning to pawn subclasses only C++
TSubclassOf<UObject> Cls = SomeAsset->LoadedClass;
if (UKismetMathLibrary::ClassIsChildOf(Cls, APawn::StaticClass()))
{
World->SpawnActor<APawn>(Cls, SpawnTransform);
}Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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