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I'm using a desktop PC with Windows 11 Home (22H2). I like operating my PC using keyboard shortcuts. I have used AutoHotkey (AHK) to control several things, such as increasing/decreasing the volume (Win + F11/F12, moving to the next multimedia track (Win + F9), etc.

However, I do not know how to assign a keyboard shortcut to increase/decrease the brightness of my monitors at will. For now, I'm using a simple, but powerful, tool called Monitorian to do that. It works fine, but I would like to achieve the same result using keyboard shortcuts, e.g., by pressing Win + F1/F2.

Is there a way to do this?

I will accept any answer no matter if it uses the default Windows or a third-party tool (AutoHotkey or other) as long as the result is the intended one. Important: I'm using two monitors and I would like to control the brightness of both monitors with the same keyboard shortcut.

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4 Answers 4

Reset to default
10

You should be able to accomplish this with AutoHotKey and NirSoft's ControlMyMonitor.exe.

NirSoft puts out lots of useful utilities like ControlMyMonitor.exe.

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11

I have marked Keltari's answer as the correct one as it led me to the solution, but for completeness' sake here's what you have to do to make this work with AutoHotkey.

First, you have to create a .bat file with the commands that increase/decrease your monitor's brightness. For my two monitors, all I had to type was:

"[PATH TO ControlMyMonitor.exe]" /ChangeValue Primary 10 5

"[PATH TO ControlMyMonitor.exe]" /ChangeValue Secondary 10 5

and saving it as increase_brightness_5.bat. This bat file simply increases the brightness of both my monitors by 5. Do the same for a bat file that decreases the brightness.

Then, go to your AutoHotkey script and assign a keyboard shortcut to run that bat file. For me, that was:

; Decrease brightness by 5
#f1::Run, "[PATH TO decrease_brightness_5.bat]",,hide

; Increase brightness by 5
#f2::Run, "[PATH TO increase_brightness_5.bat]",,hide

Basically I'm using Win+F1 to increase the brightness and Win+F2 to decrease it. This ,,hide hides the console window.

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  • 5
    There is no need for the batch file; you can simply pass parameters as part of the Run command.
    – Herohtar
    Jan 23 at 4:00
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I know there's already an answer, and despite being an avid fan and user of AHK myself, I thought I'd share another utility that is capable of achieving the same effect on its own:

EasyMCC

For link retention, I've hosted a copy of version 2.4.0 here.

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This is how I set the script up:

; make sure you put the ControlMyMonitor.exe file in the same directory as your script

; Decrease brightness by 5 ^Up::Run, ControlMyMonitor.exe /ChangeValue Primary 10 5 ,,hide

; Increase brightness by 5 ^Down::Run, ControlMyMonitor.exe /ChangeValue Primary 10 -5 ,,hide

thx @Aventinus

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    I cant see how this adds any new information.
    – Rohit Gupta
    Aug 20 at 20:28

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