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1/*
2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16import {BusinessError} from './basic';
17
18/**
19 * Provides interfaces to control the power of display.
20 *
21 * @syscap SystemCapability.PowerManager.DisplayPowerManager
22 * @systemapi
23 * @since 7
24 */
25declare namespace brightness {
26    /**
27     * Sets the screen brightness.
28     *
29     * @param {number} value Brightness value, ranging from 0 to 255.
30     * @throws {BusinessError} 401 - If the value is not valid.
31     * @throws {BusinessError} 4700101 - If connecting to the service failed.
32     * @systemapi
33     * @since 7
34     */
35    function setValue(value: number): void;
36}
37export default brightness;
38