UKismetSystemLibrary::IsObjectOfSoftClass

function Engine Blueprint Since unknown

#include "Kismet/KismetSystemLibrary.h"

Access: public Specifiers: staticBlueprintCallable

Description

Returns true if Object is an instance of SoftClass — either the exact class, a child class, or an implemented interface. Shown in Blueprint as "IsA (soft)" with a boolean exec pin (ExpandEnumAsExecs), functioning as an alternative to Cast that doesn't force a hard reference to the class.

Caveats & Gotchas

• This resolves/loads SoftClass if it isn't already loaded in order to perform the check, so it can hitch the same way LoadClassAsset_Blocking does — it is not free just because it avoids a hard reference at compile time.
• Slower than a direct Cast<T> or IsA() check since it goes through soft-path resolution; only use this when you specifically need to avoid a hard class reference (e.g. to keep an unrelated plugin's class out of your module's dependencies).
• Returns false if Object is null or if SoftClass fails to resolve.

Signature

static bool IsObjectOfSoftClass(const UObject* Object, TSoftClassPtr<UObject> SoftClass)

Parameters

Name	Type	Description	Default
Object	const UObject*	The object instance to test.	—
SoftClass	TSoftClassPtr<UObject>	The soft class to test against.	—

Return Type

bool

Example

Check an object's class without a hard reference C++

TSoftClassPtr<UObject> SoftEnemyClass = SoftEnemyClassRef;
if (UKismetSystemLibrary::IsObjectOfSoftClass(SomeActor, SoftEnemyClass))
{
    // SomeActor is an instance of (or derives from) the soft-referenced class
}

Version History

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

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