Windows:如何更改显示器的背光亮度 [英] Windows: How to change monitor's backlight brightness

问题描述

自从我在笔记本电脑上使用外接显示器以来，当我需要更改背光亮度时，我必须按显示器上的按钮以浏览其菜单并调整亮度.
真是痛苦.太多的按钮按下！当我使用笔记本电脑的集成显示器时，这就像按Fn键加组合键一样简单.

Ever since I've been using an external monitor with my laptop, when I need to change the backlight brightness I have to press the monitor's buttons to navigate through its menu and adjust the brightness.
That is really a pain. It's too many button presses! When I was using my laptop's integrated monitor, that was as simple as presing the Fn key plus a combination.

可能有些人可能认为无法以编程方式进行更改.我也这么认为.但是我刚刚在我的视频卡配置中找到了一个控件(GUI控件)，它确实可以做到这一点.
因此，这证明可以通过编程方式对此进行更改.

Probably some of you might think it is not possible to change that programmatically. I thought that too. But I've just found a control (a GUI control) in my video card configuration that does exactly that.
So, that proves it is possible to change this programmatically.

但是我找不到能做到这一点的任何工具或实用程序.我发现的所有工具都是用于调整伽玛，亮度和对比度的工具.但是背光亮度是另一回事.

But I can't find any tool or utility that does that. All what I've found are tools that adjust gamma, brightness and contrast. But backlight brightness is a different thing.

你们中有人知道如何在Windows中以编程方式调整该死的东西吗?

Does any of you know how to adjust that damn thing programmatically in Windows?

推荐答案

让我们再试一次.有一个 SetMonitorBrightness 函数，但仅从Vista开始才可用.还有 IOCTL_VIDEO_SET_DISPLAY_BRIGHTNESS ，该版本可从XP SP1开始使用.我可能出于好奇而尝试在笔记本电脑上尝试一下.

Let's try that again. There is a SetMonitorBrightness function, but it is only available starting with Vista. There is also IOCTL_VIDEO_SET_DISPLAY_BRIGHTNESS which is available starting with XP SP1. I might give that a try on my laptop just out of curiosity.

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