/* * Copyright (c) 2021-2022 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import {BusinessError} from './basic'; /** * Provides interfaces to control the power of display. * * @syscap SystemCapability.PowerManager.DisplayPowerManager * @systemapi * @since 7 */ declare namespace brightness { /** * Sets the screen brightness. * * @param {number} value Brightness value, ranging from 0 to 255. * @throws {BusinessError} 401 - If the value is not valid. * @throws {BusinessError} 4700101 - If connecting to the service failed. * @systemapi * @since 7 */ function setValue(value: number): void; } export default brightness;