UKismetSystemLibrary::IsValidClass

function Engine Blueprint Since unknown

#include "Kismet/KismetSystemLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Returns true if the class is usable: non-null and not pending kill / garbage. The UClass counterpart to IsValid for UObject instances.

• Checks the UClass object itself (the reflection metadata), not whether any instance of that class exists or is valid — don't confuse this with checking an actor/object reference.
• Also a thin wrapper around ::IsValid(Class); prefer the global template in C++ and reserve this entry point for Blueprint's 'Is Valid Class' node.

static bool IsValidClass(UClass* Class)

Name	Type	Description	Default
Class	UClass*	The class to check.	—

bool

Validate a class reference before spawning C++

if (UKismetSystemLibrary::IsValidClass(ActorClassToSpawn))
{
    GetWorld()->SpawnActor<AActor>(ActorClassToSpawn);
}

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

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