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> Unreal Engine API Reference > Plugins > NiagaraEditor > ViewModels > INiagaraParameterDefinitionsSubscriberViewModel

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INiagaraParameterDefinitionsSubscriberViewModel

Interface for viewmodels to classes that subscribe to [UNiagaraParameterDefinitions](API\Plugins\NiagaraEditor\UNiagaraParameterDefinitions).

Windows

MacOS

Linux

Inheritance Hierarchy

INiagaraParameterDefinitionsSubscriberViewModel

FNiagaraEmitterViewModel

FNiagaraScriptViewModel

FNiagaraScratchPadScriptViewModel

FNiagaraSystemViewModel

References

Module	NiagaraEditor
Header	/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraParameterDefinitionsSubscriberViewModel.h
Include	#include "ViewModels/NiagaraParameterDefinitionsSubscriberViewModel.h"

Syntax

class INiagaraParameterDefinitionsSubscriberViewModel

Remarks

Interface for viewmodels to classes that subscribe to UNiagaraParameterDefinitions.

Destructors

	Name	Description
	~INiagaraParameterDefinitionsSubscriberViewModel()

Functions

	Name	Description
UNiagaraScri...	FindScriptVarById ( const FGuid& ScriptVarId )	Find a viewed object owned UNiagaraScriptVariable with a matching Id GUID, or otherwise return nullptr.
UNiagaraPara...	FindSubscribedParameterDefinitionsById ( const FGuid& LibraryId )	Find a subscribed Parameter Definitions with a matching Id GUID, or otherwise return nullptr.
UNiagaraScri...	FindSubscribedParameterDefinitionsScriptVarByName ( const FName& ScriptVarName )	Find a parameter definitions owned UNiagaraSCriptVariable with a matching parameter name FName, or otherwise return nullptr.
TArray< UNia...	GetAllScriptVars()	Get all UNiagaraScriptVariables held by the UNiagaraGraphs of the UNiagaraScriptSourceBases from GetAllSourceScripts().
TArray< UNia...	GetAvailableParameterDefinitions ( bool bSkipSubscribedParameterDefini... )	Get all parameter libraries under the editor and niagara packages, along with those that are in the same package as the UObject this viewmodel is editing.
FOnSubscribe...	GetOnSubscribedParameterDefinitionsChangedDelegate()	Public passthrough to get the OnChanged() delegate owned by the viewed INiagaraParameterDefinitionsSubscriber.
INiagaraPara...	GetParameterDefinitionsSubscriber()
FString	GetSourceObjectPackagePathName()	Get the path to the package of the UObject this viewmodel is editing.
TArray< UNia...	GetSubscribedParameterDefinitions()
void	SetParameterIsOverridingLibraryDefaultValue ( const FGuid& ScriptVarId, bool bIsOverriding )	Find the parameter owned by the object viewed by the INiagaraParameterDefinitionsSubscriberViewModel and set its overriding state with a valid Parameter Definitions if possible.
void	SetParameterIsSubscribedToDefinitions ( const FGuid& ScriptVarId, bool bIsSynchronizing )	Find the parameter owned by the object viewed by the INiagaraParameterDefinitionsSubscriberViewModel and set its synchronizing state with a valid Parameter Definitions if possible.
void	SubscribeAllParametersToDefinitions ( const FGuid& DefinitionsUniqueId )	Find all parameters owned by the object viewed by the INiagaraParameterDefinitionsSubscriberViewModel and mark them as synchronizing with the target Parameter Definitions, then synchronize them.
void	SubscribeToParameterDefinitions ( UNiagaraParameterDefinitions* ... )
void	SynchronizeScriptVarWithParameterDefinitions ( UNiagaraScriptVariable* Script..., bool bForce )	Synchronizes a specific graph parameter with a subscribed parameter definition library's matching parameter (if it exists.)
void	SynchronizeWithParameterDefinitions ( FSynchronizeWithParameterDefinition... )	Synchronizes all Parameter Definitions UNiagaraScriptVariables with all graph parameters.
void	UnsubscribeFromParameterDefinitions ( const FGuid& ParameterDefinitionsT... )

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