C# 设置屏幕亮度 Windows 7 [英] C# setting screen brightness Windows 7

问题描述

我想自己调整屏幕亮度.因为 Windows 让我只能在有限的范围内进行调整.我想将显示器从 0 调暗到 100% 并将其关闭/打开.如果Windows可以自动执行它应该是可能的(在:x分钟后显示暗淡/在:x分钟后关闭显示).我尝试了一些我通过谷歌找到的资源和类.但它们都不起作用.

I want ajust screen brightness by my self. Because Windows lets me only adjusting in limited range. I want dim the display from 0 to 100% and turning it off/on. It should be possible if windows can it do automatically (Dim display after: x minutes/Turn off display after: x minutes). I tried some sources and classes what I found by google. But no of them works.

你有没有试过这个，或者你能推荐我任何工作代码吗?

Have you ever tried this or can you recommend me any working code?

感谢您的回复.

推荐答案

您可以使用 WmiSetBrightness 方法:

using System.Management;
//...
static void SetBrightness(byte targetBrightness) {
    ManagementScope scope = new ManagementScope("root\WMI");
    SelectQuery query = new SelectQuery("WmiMonitorBrightnessMethods");
    using(ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query)) {
        using(ManagementObjectCollection objectCollection = searcher.Get()) {
            foreach(ManagementObject mObj in objectCollection) {
                mObj.InvokeMethod("WmiSetBrightness",
                    new Object[] { UInt32.MaxValue, targetBrightness });
                break;
            }
        }
    }
}

有关详细信息，请查看 WDDM 中的亮度控制 和 监控配置功能

For more details, please take a look at Brightness Control in WDDM and Monitor Configuration Functions

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