FEditorViewportClient ( [FEditorModeTools](API\Editor\UnrealEd\FEditorModeTools) * InModeTools, [FPreviewScene](API\Runtime\Engine\FPreviewScene) * InPreviewScene, const [TWeakPtr](API\Runtime\Core\Templates\TWeakPtr)< [SEditorViewport](API\Editor\UnrealEd\SEditorViewport) > & InEditorViewportWidget )