FBlueprintMetadata

Constants used for metadata, etc... in blueprints.

Unreal Engine C++ API Reference > Editor > BlueprintGraph

References

   
Module BlueprintGraph
Header /Engine/Source/Editor/BlueprintGraph/Classes/EdGraphSchema_K2.h
Include #include "EdGraphSchema_K2.h"

Syntax

struct FBlueprintMetadata  

Remarks

Constants used for metadata, etc... in blueprints.

Constructors

No constructors are accessible with public or protected access.

Constants

Name Description
MD_AllowableBlueprintVariableType Struct/Enum/Class: If true, this class, struct, or enum is a valid type for use as a variable in a blueprint
MD_AllowAbstractClasses Metadata that should be used with UPARAM to specify whether a TSubclassOf argument allows abstract classes
MD_AllowPrivateAccess If true, properties defined in the C++ private scope will be accessible to blueprints
MD_AnimBlueprintFunction Stub function used internally by animation blueprints
MD_ArrayDependentParam  
MD_ArrayParam  
MD_AutoCreateRefTerm If true, an unconnected pin will generate a UPROPERTY under the hood to connect as the input, which will be set to the literal value for the pin.
MD_Bitflags Metadata that identifies an enum as a set of explicitly-named bitflags.
MD_Bitmask Metadata that identifies an integral property as a bitmask.
MD_BitmaskEnum Metadata that associates a bitmask property with a bitflag enum.
MD_BlueprintInternalUseOnly  
MD_BlueprintInternalUseOnlyHierarchical  
MD_BlueprintSpawnableComponent Class: [ClassMetadata] If present, the component class can be spawned by a blueprint
MD_CallableWithoutWorldContext For functions that have the MD_WorldContext metadata but are safe to be called from contexts that do not have the ability to provide the world context (either through GetWorld() or ShowWorldContextPin class metadata
MD_CallInEditor Metadata string that indicates the specified event can be triggered in editor
MD_CannotImplementInterfaceInBlueprint [InterfaceMetadata]
MD_ChildCannotTick [ClassMetadata] Used for Actor and Component classes. If the native class cannot tick, Blueprint generated classes based this Actor or Component can never tick even if bCanBlueprintsTickByDefault is true.
MD_ChildCanTick [ClassMetadata] Used for Actor and Component classes. If the native class cannot tick, Blueprint generated classes based this Actor or Component can have bCanEverTick flag overridden even if bCanBlueprintsTickByDefault is false.
MD_CommutativeAssociativeBinaryOperator  
MD_CompactNodeTitle [FunctionMetadata] Indicates that the function should be drawn as a compact node with the specified body title
MD_CustomStructureParam  
MD_CustomThunk Indicates that the UFUNCTION implements its own thunk function
MD_CustomThunkTemplates Specifies which struct implements the custom thunk functions for this class
MD_DataTablePin Metadata to identify an DataTable Pin.
MD_DefaultToSelf If true, the specified UObject parameter will default to "self" if nothing is connected
MD_DeprecatedFunction [FunctionMetadata] Indicates that the function is deprecated
MD_DeprecationMessage [FunctionMetadata] Supplies the custom message to use for deprecation
MD_DevelopmentOnly For functions that should be compiled in development mode only
MD_DisplayName [FunctionMetadata] Indicates that the function should be drawn with this title over the function name
MD_DynamicOutputParam Metadata that flags the function output param that will be controlled by the "MD_DynamicOutputType" pin
MD_DynamicOutputType Metadata that flags function params that govern what type of object the function returns
MD_ExpandBoolAsExecs Synonym for MD_ExpandEnumAsExecs
MD_ExpandEnumAsExecs Indicates that during compile we want to create multiple exec pins from an enum param
MD_ExposeFunctionCategories Categories of functions to expose on this property
MD_ExposeOnSpawn UPROPERTY will be exposed on "Spawn Blueprint" nodes as an input
MD_FieldNotify Metadata to add the property or function to the FieldNotification system.
MD_ForceAsFunction [FunctionMetadata] Indicates that the function should appear as blueprint function even if it doesn't return a value.
MD_FunctionCategory The category that a function appears under in the palette.
MD_FunctionKeywords Keywords used when searching for functions
MD_HideAssetPicker The specified parameter should hide the asset picker on the pin, even if it is a valid UObject Asset.
MD_HidePin Comma delimited list of pins that should be hidden on this function.
MD_HideSelfPin If true, the self pin should not be shown or connectable regardless of purity, const, etc.
MD_IgnoreCategoryKeywordsInSubclasses [ClassMetadata] Used to make the first subclass of a class ignore all inherited showCategories and hideCategories commands
MD_IgnoreTypePromotion [FunctionMetadata] Indicates that the function should be ignored when considered for blueprint type promotion
MD_InternalUseParam [FunctionMetadata] Indicates that a particular function parameter is for internal use only, which means it will be both hidden and not connectible.
MD_IsBlueprintBase If true, the class will be usable as a base for blueprints
MD_Latent Marks a UFUNCTION as latent execution
MD_LatentCallbackTarget  
MD_LatentInfo  
MD_MapKeyParam  
MD_MapParam Metadata that flags TMap function parameters that will have their type determined at blueprint compile time
MD_MapValueParam  
MD_MaterialParameterCollectionFunction Metadata string that indicates to use the MaterialParameterCollectionFunction node.
MD_Namespace Namespace into which a type can be optionally defined; if empty or not set, the type will belong to the global namespace (default).
MD_NativeBreakFunction  
MD_NativeDisableSplitPin  
MD_NativeMakeFunction Metadata that flags make/break functions for specific struct types.
MD_NeedsLatentFixup  
MD_NotAllowableBlueprintVariableType If true, this class, struct, or enum is not valid for use as a variable in a blueprint.
MD_NotThreadSafe Function marked as explicitly not thread-safe.
MD_Private UPROPERTY cannot be modified by other blueprints
MD_ProhibitedInterfaces  
MD_PropertyGetFunction UPROPERTY uses the specified function as a getter rather than reading from the property directly
MD_PropertySetFunction UPROPERTY uses the specified function as a setter rather than writing to the property directly
MD_Protected Function metadata
MD_RestrictedToClasses A listing of classes that this class is accessible from (and only those classes, if present).
MD_ReturnDisplayName [FunctionMetadata] Indicates the display name of the return value pin
MD_SetParam Metadata that flags TSet parameters that will have their type determined at blueprint compile time
MD_ShowWorldContextPin If true, the hidden world context pin will be visible when the function is placed in a child blueprint of the class.
MD_ThreadSafe Function or class marked as thread-safe. Opts class/function compilation into thread-safety checks.
MD_Tooltip Metadata string that sets the tooltip
MD_UnsafeForConstructionScripts Marks a UFUNCTION as unsafe for use in the UCS, which prevents it from being called from the UCS.
MD_UseEnumValuesAsMaskValuesInEditor Metadata that signals to the editor that enum values correspond to mask values instead of bitshift (index) values.
MD_Variadic Marks a UFUNCTION as accepting variadic arguments
MD_WorldContext The specified parameter should be used as the context object when retrieving a UWorld pointer (implies hidden and default-to-self)

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