Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Runtime > Core > UObject

Light Theme

Dark Theme

UObject

Windows

MacOS

Linux

Classes

	Name	Description
	FAnimObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FAnimPhysObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FAutomationObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FBlueprintsObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FBuildObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FCineCameraObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FCoreObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FDestructionObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FDevVersionRegistration	Copyright Epic Games, Inc. All Rights Reserved.
	FEditorObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FEnterpriseObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FExternalPhysicsCustomObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FExternalPhysicsMaterialCustomObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FFortniteMainBranchObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FFrameworkObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FGeometryObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FLazyName	Lazily constructed FName that helps avoid allocating FNames during static initialization
	FLoadTimesObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FMinimalName	The minimum amount of data required to reconstruct a name This is smaller than FName, but you lose the case-preserving behavior
	FMobileObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FName	Public name, available to the world.
	FNameDebugVisualizer
	FNameEntry	A global deduplicated name stored in the global name table.
	FNameEntryHeader	Implementation detail exposed for debug visualizers
	FNameEntryId	Opaque id to a deduplicated name
	FNameEntrySerialized	This struct is only used during loading/saving and is not part of the runtime costs
	FNameFastLess	Fast non-alphabetical order that is only stable during this process' lifetime
	FNameLexicalLess	Slow alphabetical order that is stable / deterministic over process runs
	FNetworkingObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FNiagaraObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FOnlineObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FPhysicsObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FPlatformObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FReflectionCaptureObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FReleaseObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FRenderingObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FScriptName	The full amount of data required to reconstruct a case-preserving name This will be the same size as FName when WITH_CASE_PRESERVING_NAME is 1, and is used to store an FName in cases where the size of FName must be constant between build configurations (eg, blueprint bytecode)
	FSequencerObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	FVRObjectVersion	Copyright Epic Games, Inc. All Rights Reserved.
	TAutoWeakObjectPtr	Automatic version of the weak object pointer
	TMulticastScriptDelegate	Script multi-cast delegate base class
	TScriptDelegate	Script delegate base class.
	TWeakObjectPtr	TWeakObjectPtr is the templated version of the generic FWeakObjectPtr
	TWeakObjectPtrMapKeyFuncs	MapKeyFuncs for TWeakObjectPtrs which allow the key to become stale without invalidating the map.

Constants

Name	Description
NAME_SIZE	Maximum size of name.

Typedefs

Name	Description
FNameSortIndexes
NAME_INDEX	Legacy typedef - this is no longer an index

Enums

	Name	Description
	EDebugSerializationFlags	Debug serialization flags.
	EFindName	Enumeration for finding name.
	ELinkerNameTableConstructor
	EName
	ENameCase
	EPropertyPortFlags	Property exporting flags.
	EUnrealEngineObjectLicenseeUE4Version
	EUnrealEngineObjectUE4Version

Functions

	Name	Description
void	CopyFromWeakArray ( DestArrayType& Dest, const SourceArrayType& Src )	Utility function to fill in a TArray from a TArray>
void	Freeze::IntrinsicWriteMemoryImage ( FMemoryImageWriter& Writer, const FName& Object, const FTypeLayoutDesc& )
uint32	GetTypeHash ( FNameEntryId Id )
uint32	GetTypeHash ( FName Name )
void	LexFromString ( FName& Name, const TCHAR* Str )
const TCHAR ...	LexToString ( EName Ename )
FString	LexToString ( const FName& Name )
void	LoadNameBatch ( TArray< FNameEntryId >& OutNames, TArrayView< const uint8 > NameData, TArrayView< const uint8 > HashData )	Load a name blob with precalculated hashes.
TWeakObjectP...	MakeWeakObjectPtr ( T* Ptr )	Helper function which deduces the type of the initializer.
FName	MinimalNameToName ( const FMinimalName& InName )
FMinimalName	NameToMinimalName ( const FName& InName )
FScriptName	NameToScriptName ( const FName& InName )
bool	operator!= ( EName Ename, FNameEntryId Id )
bool	operator!= ( FNameEntryId Id, EName Ename )
bool	operator!= ( const CharType* LHS, const FName& RHS )	Inequality operator with CharType* on left hand side and FName on right hand side
bool	operator!= ( const TWeakObjectPtr< LhsT, OtherTW..., const TWeakObjectPtr< RhsT, OtherTW... )	Compare weak pointers for inequality
bool	operator!= ( const TWeakObjectPtr< LhsT, OtherTW..., const RhsT* Rhs )
bool	operator!= ( const LhsT* Lhs, const TWeakObjectPtr< RhsT, OtherTW... )
bool	operator!= ( const TWeakObjectPtr< LhsT, OtherTW..., TYPE_OF_NULLPTR )
bool	operator!= ( TYPE_OF_NULLPTR, const TWeakObjectPtr< RhsT, OtherTW... )
bool	operator== ( const TWeakObjectPtr< LhsT, OtherTW..., TYPE_OF_NULLPTR )
bool	operator== ( const LhsT* Lhs, const TWeakObjectPtr< RhsT, OtherTW... )
bool	operator== ( const TWeakObjectPtr< LhsT, OtherTW..., const RhsT* Rhs )
bool	operator== ( TYPE_OF_NULLPTR, const TWeakObjectPtr< RhsT, OtherTW... )
bool	operator== ( const TWeakObjectPtr< LhsT, OtherTW..., const TWeakObjectPtr< RhsT, OtherTW... )	Compare weak pointers for equality.
bool	operator== ( FNameEntryId Id, EName Ename )
bool	operator== ( EName Ename, FNameEntryId Id )
bool	operator== ( const CharType* LHS, const FName& RHS )	Equality operator with CharType* on left hand side and FName on right hand side
ByteProperty...	REGISTER_NAME ( 257, Zlib )
ByteProperty...	REGISTER_NAME ( 255, Control )
ByteProperty...	REGISTER_NAME ( 253, ID )
ByteProperty...	REGISTER_NAME ( 251, EditorSettings )
ByteProperty...	REGISTER_NAME ( 249, Rotation )
ByteProperty...	REGISTER_NAME ( 247, OtherChildren )
ByteProperty...	REGISTER_NAME ( 245, GameThread )
ByteProperty...	REGISTER_NAME ( 243, High )
ByteProperty...	REGISTER_NAME ( 241, Team )
ByteProperty...	REGISTER_NAME ( 239, Untitled )
ByteProperty...	REGISTER_NAME ( 235, SlideVel )
ByteProperty...	REGISTER_NAME ( 233, TextureScaleParameter )
ByteProperty...	REGISTER_NAME ( 231, MeshEmitterVertexColor )
ByteProperty...	REGISTER_NAME ( 227, MoveActor )
ByteProperty...	REGISTER_NAME ( 221, Game )
ByteProperty...	REGISTER_NAME ( 223, UI )
ByteProperty...	REGISTER_NAME ( 225, DeviceID )
ByteProperty...	REGISTER_NAME ( 259, LZ4 )	Online.
ByteProperty...	REGISTER_NAME ( 237, MeshEmitterDynamicParameter )
ByteProperty...	REGISTER_NAME ( 281, Stream )
ByteProperty...	REGISTER_NAME ( 356, Error )	File format backwards-compatibility.
ByteProperty...	REGISTER_NAME ( 285, FlushNetDormancy )
ByteProperty...	REGISTER_NAME ( 500, PerformanceCapture )	Special config names - not required to be consistent for network replication.
ByteProperty...	REGISTER_NAME ( 450, AI )
ByteProperty...	REGISTER_NAME ( 409, InterpCurveTwoVectors )
ByteProperty...	REGISTER_NAME ( 407, InterpCurveVector2D )
ByteProperty...	REGISTER_NAME ( 405, RawDistributionVector )
ByteProperty...	REGISTER_NAME ( 403, SoundCue )
ByteProperty...	REGISTER_NAME ( 401, InitChild2StartBone )
ByteProperty...	REGISTER_NAME ( 219, PackageMetaData )
ByteProperty...	REGISTER_NAME ( 354, Cmd )
ByteProperty...	REGISTER_NAME ( 352, Init )
ByteProperty...	REGISTER_NAME ( 350, PerfWarning )	Log messages.
ByteProperty...	REGISTER_NAME ( 322, Spectating )
ByteProperty...	REGISTER_NAME ( 312, VoiceChat )	Optimized replication.
ByteProperty...	REGISTER_NAME ( 303, LightMapResolution )	REGISTER_NAME(310,)
ByteProperty...	REGISTER_NAME ( 301, Point )
ByteProperty...	REGISTER_NAME ( 293, LiveStreamVoice )	Texture settings.
ByteProperty...	REGISTER_NAME ( 291, MeshPort )
ByteProperty...	REGISTER_NAME ( 289, GamePort )
ByteProperty...	REGISTER_NAME ( 287, GameSession )
ByteProperty...	REGISTER_NAME ( 283, PendingNetDriver )
ByteProperty...	REGISTER_NAME ( 217, PersistentLevel )
ByteProperty...	REGISTER_NAME ( 69, Quat )
ByteProperty...	REGISTER_NAME ( 213, Outer )
ByteProperty...	REGISTER_NAME ( 34, EnumProperty )	More class properties.
ByteProperty...	REGISTER_NAME ( 32, Editor )
ByteProperty...	REGISTER_NAME ( 30, Core )	Special packages.
ByteProperty...	REGISTER_NAME ( 28, MapProperty )	REGISTER_NAME(27,Available)
ByteProperty...	REGISTER_NAME ( 25, UInt32Property )
ByteProperty...	REGISTER_NAME ( 23, Int8Property )
ByteProperty...	REGISTER_NAME ( 21, Int32Property )
ByteProperty...	REGISTER_NAME ( 19, SoftObjectProperty )
ByteProperty...	REGISTER_NAME ( 16, MulticastDelegateProperty )	REGISTER_NAME(17,Available)
ByteProperty...	REGISTER_NAME ( 14, TextProperty )
ByteProperty...	REGISTER_NAME ( 12, RotatorProperty )
ByteProperty...	REGISTER_NAME ( 10, StructProperty )
ByteProperty...	REGISTER_NAME ( 8, DoubleProperty )
ByteProperty...	REGISTER_NAME ( 6, NameProperty )
ByteProperty...	REGISTER_NAME ( 4, FloatProperty )
ByteProperty	REGISTER_NAME ( 2, IntProperty )
	REGISTER_NAME ( 0, None )	Special zero value, meaning no name.
ByteProperty...	REGISTER_NAME ( 215, Role )
ByteProperty...	REGISTER_NAME ( 53, Box )
ByteProperty...	REGISTER_NAME ( 51, BoxSphereBounds )
ByteProperty...	REGISTER_NAME ( 57, Vector4 )
ByteProperty...	REGISTER_NAME ( 211, Global )
ByteProperty...	REGISTER_NAME ( 209, Interface )
ByteProperty...	REGISTER_NAME ( 207, Package )
ByteProperty...	REGISTER_NAME ( 205, Skip )
ByteProperty...	REGISTER_NAME ( 203, Enum )
ByteProperty...	REGISTER_NAME ( 201, TRUE )
ByteProperty...	REGISTER_NAME ( 55, IntRect )
ByteProperty...	REGISTER_NAME ( 105, Class )
ByteProperty...	REGISTER_NAME ( 107, Function )	Misc.
ByteProperty...	REGISTER_NAME ( 101, Camera )
ByteProperty...	REGISTER_NAME ( 71, Transform )	Object class names.
ByteProperty...	REGISTER_NAME ( 601, EditorKeyBindings )
ByteProperty...	REGISTER_NAME ( 67, Pointer )
ByteProperty...	REGISTER_NAME ( 65, LinearColor )
ByteProperty...	REGISTER_NAME ( 63, Plane )
ByteProperty...	REGISTER_NAME ( 61, SHVector )
ByteProperty...	REGISTER_NAME ( 59, Vector )
ByteProperty...	REGISTER_NAME ( 103, ObjectRedirector )
ByteProperty...	REGISTER_NAME ( 700, Filename )	Commonly multicased names - defined globally to prevent non-determinism in package name tables.
void	ReserveNameBatch ( uint32 NameDataBytes, uint32 HashDataBytes )	Reserve memory in preparation for batch loading
FName	ScriptNameToName ( const FScriptName& InName )
bool	ShouldReplicateAsInteger ( EName Ename )

Variables

		Name	Description
	const int32	GPackageFileLicenseeUE4Version
	const int32	GPackageFileUE4Version

Help shape the future of Unreal Engine documentation! Tell us how we're doing so we can serve you better.

Take our survey

Dismiss