static [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [SCurveEditorFilterPanel](API\Editor\CurveEditor\Filters\SCurveEditorFilterPanel) > OpenDialog ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [SWindow](API\Runtime\SlateCore\Widgets\SWindow) > RootWindow, [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FCurveEditor](API\Editor\CurveEditor\FCurveEditor) > InHostCurveEditor, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UCurveEditorFilterBase](API\Editor\CurveEditor\Filters\UCurveEditorFilterBase) > DefaultFilterClass )