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 > CoreUObject > UObject > EPropertyFlags

Light Theme

Dark Theme

EPropertyFlags

Flags associated with each property in a class, overriding the property's default behavior.

Windows

MacOS

Linux

References

Module	CoreUObject
Header	/Engine/Source/Runtime/CoreUObject/Public/UObject/ObjectMacros.h
Include	#include "UObject/ObjectMacros.h"

Syntax

enum EPropertyFlags
{
    CPF_None                              = 0,
    CPF_Edit                              = 0x0000000000000001,
    CPF_ConstParm                         = 0x0000000000000002,
    CPF_BlueprintVisible                  = 0x0000000000000004,
    CPF_ExportObject                      = 0x0000000000000008,
    CPF_BlueprintReadOnly                 = 0x0000000000000010,
    CPF_Net                               = 0x0000000000000020,
    CPF_EditFixedSize                     = 0x0000000000000040,
    CPF_Parm                              = 0x0000000000000080,
    CPF_OutParm                           = 0x0000000000000100,
    CPF_ZeroConstructor                   = 0x0000000000000200,
    CPF_ReturnParm                        = 0x0000000000000400,
    CPF_DisableEditOnTemplate             = 0x0000000000000800,
    CPF_Transient                         = 0x0000000000002000,
    CPF_Config                            = 0x0000000000004000,
    CPF_DisableEditOnInstance             = 0x0000000000010000,
    CPF_EditConst                         = 0x0000000000020000,
    CPF_GlobalConfig                      = 0x0000000000040000,
    CPF_InstancedReference                = 0x0000000000080000,
    CPF_DuplicateTransient                = 0x0000000000200000,
    CPF_SaveGame                          = 0x0000000001000000,
    CPF_NoClear                           = 0x0000000002000000,
    CPF_ReferenceParm                     = 0x0000000008000000,
    CPF_BlueprintAssignable               = 0x0000000010000000,
    CPF_Deprecated                        = 0x0000000020000000,
    CPF_IsPlainOldData                    = 0x0000000040000000,
    CPF_RepSkip                           = 0x0000000080000000,
    CPF_RepNotify                         = 0x0000000100000000,
    CPF_Interp                            = 0x0000000200000000,
    CPF_NonTransactional                  = 0x0000000400000000,
    CPF_EditorOnly                        = 0x0000000800000000,
    CPF_NoDestructor                      = 0x0000001000000000,
    CPF_AutoWeak                          = 0x0000004000000000,
    CPF_ContainsInstancedReference        = 0x0000008000000000,
    CPF_AssetRegistrySearchable           = 0x0000010000000000,
    CPF_SimpleDisplay                     = 0x0000020000000000,
    CPF_AdvancedDisplay                   = 0x0000040000000000,
    CPF_Protected                         = 0x0000080000000000,
    CPF_BlueprintCallable                 = 0x0000100000000000,
    CPF_BlueprintAuthorityOnly            = 0x0000200000000000,
    CPF_TextExportTransient               = 0x0000400000000000,
    CPF_NonPIEDuplicateTransient          = 0x0000800000000000,
    CPF_ExposeOnSpawn                     = 0x0001000000000000,
    CPF_PersistentInstance                = 0x0002000000000000,
    CPF_UObjectWrapper                    = 0x0004000000000000,
    CPF_HasGetValueTypeHash               = 0x0008000000000000,
    CPF_NativeAccessSpecifierPublic       = 0x0010000000000000,
    CPF_NativeAccessSpecifierProtected    = 0x0020000000000000,
    CPF_NativeAccessSpecifierPrivate      = 0x0040000000000000,
    CPF_SkipSerialization                 = 0x0080000000000000,
}

Values

Name	Description
CPF_None
CPF_Edit	Property is user-settable in the editor.
CPF_ConstParm	This is a constant function parameter.
CPF_BlueprintVisible	This property can be read by blueprint code.
CPF_ExportObject	Object can be exported with actor.
CPF_BlueprintReadOnly	This property cannot be modified by blueprint code.
CPF_Net	Property is relevant to network replication.
CPF_EditFixedSize	Indicates that elements of an array can be modified, but its size cannot be changed.
CPF_Parm	Function/When call parameter.
CPF_OutParm	Value is copied out after function call.
CPF_ZeroConstructor	Memset is fine for construction
CPF_ReturnParm	Return value.
CPF_DisableEditOnTemplate	Disable editing of this property on an archetype/sub-blueprint
CPF_Transient	CPF_ = 0x0000000000001000, ///<.
CPF_Config	Property should be loaded/saved as permanent profile.
CPF_DisableEditOnInstance	CPF_ = 0x0000000000008000, ///<.
CPF_EditConst	Property is uneditable in the editor.
CPF_GlobalConfig	Load config from base class, not subclass.
CPF_InstancedReference	Property is a component references.
CPF_DuplicateTransient	CPF_ = 0x0000000000100000, ///<.
CPF_SaveGame	Property should be serialized for save games, this is only checked for game-specific archives with ArIsSaveGame.
CPF_NoClear	Hide clear (and browse) button.
CPF_ReferenceParm	CPF_ = 0x0000000004000000, ///<.
CPF_BlueprintAssignable	MC Delegates only. Property should be exposed for assigning in blueprint code.
CPF_Deprecated	Property is deprecated. Read it from an archive, but don't save it.
CPF_IsPlainOldData	If this is set, then the property can be memcopied instead of CopyCompleteValue / CopySingleValue.
CPF_RepSkip	Not replicated. For non replicated properties in replicated structs.
CPF_RepNotify	Notify actors when a property is replicated.
CPF_Interp	Interpolatable property for use with matinee
CPF_NonTransactional	Property isn't transacted.
CPF_EditorOnly	Property should only be loaded in the editor.
CPF_NoDestructor	No destructor
CPF_AutoWeak	CPF_ = 0x0000002000000000, ///<.
CPF_ContainsInstancedReference	Property contains component references.
CPF_AssetRegistrySearchable	Asset instances will add properties with this flag to the asset registry automatically
CPF_SimpleDisplay	The property is visible by default in the editor details view.
CPF_AdvancedDisplay	The property is advanced and not visible by default in the editor details view.
CPF_Protected	Property is protected from the perspective of script
CPF_BlueprintCallable	MC Delegates only. Property should be exposed for calling in blueprint code.
CPF_BlueprintAuthorityOnly	MC Delegates only. This delegate accepts (only in blueprint) only events with BlueprintAuthorityOnly.
CPF_TextExportTransient	Property shouldn't be exported to text format (e.g. copy/paste)
CPF_NonPIEDuplicateTransient	Property should only be copied in PIE.
CPF_ExposeOnSpawn	Property is exposed on spawn.
CPF_PersistentInstance	A object referenced by the property is duplicated like a component. (Each actor should have an own instance.)
CPF_UObjectWrapper	Property was parsed as a wrapper class like TSubclassOf, FScriptInterface etc., rather than a USomething*.
CPF_HasGetValueTypeHash	This property can generate a meaningful hash value.
CPF_NativeAccessSpecifierPublic	Public native access specifier.
CPF_NativeAccessSpecifierProtected	Protected native access specifier.
CPF_NativeAccessSpecifierPrivate	Private native access specifier.
CPF_SkipSerialization	Property shouldn't be serialized, can still be exported to text.

Remarks

Flags associated with each property in a class, overriding the property's default behavior.

When adding one here, please update ParsePropertyFlags()

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

Take our survey

Dismiss