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@krrr
Last active March 23, 2024 18:09
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Windows screen brightness fine tune (autohotkey)
#,::
AdjustScreenBrightness(-3)
Return
#.::
AdjustScreenBrightness(3)
Return
AdjustScreenBrightness(step) {
service := "winmgmts:{impersonationLevel=impersonate}!\\.\root\WMI"
monitors := ComObjGet(service).ExecQuery("SELECT * FROM WmiMonitorBrightness WHERE Active=TRUE")
monMethods := ComObjGet(service).ExecQuery("SELECT * FROM wmiMonitorBrightNessMethods WHERE Active=TRUE")
minBrightness := 5 ; level below this is identical to this
for i in monitors {
curt := i.CurrentBrightness
break
}
if (curt < minBrightness) ; parenthesis is necessary here
curt := minBrightness
toSet := curt + step
if (toSet > 100)
return
if (toSet < minBrightness)
toSet := minBrightness
for i in monMethods {
i.WmiSetBrightness(1, toSet)
break
}
}
@krrr
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krrr commented Oct 30, 2021

I'm not using this script anymore, and recommend this opensource uwp app: https://github.com/xanderfrangos/twinkle-tray

@GameEntity903
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Hey, I saw this script and I was wondering how to get the current brightness of the screen outside the function.

@Rabelaiss
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@Ahmad-f79 Does it work on Windows 11 too? I'm trying it but it shows the volume indicator instead
image

@erbanku
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erbanku commented Dec 20, 2022

@Ahmad-f79 Does it work on Windows 11 too? I'm trying it but it shows the volume indicator instead image

The below code works fine in Windows 11. You can adjust the brightness using Shift+Mouse Scroller Up/Down.

;Shift + Mouse Scroller

+WheelDown::
    AdjustScreenBrightness(-5)
Return

+WheelUp::
    AdjustScreenBrightness(5)
Return

AdjustScreenBrightness(step) {
    service := "winmgmts:{impersonationLevel=impersonate}!\\.\root\WMI"
    monitors := ComObjGet(service).ExecQuery("SELECT * FROM WmiMonitorBrightness WHERE Active=TRUE")
    monMethods := ComObjGet(service).ExecQuery("SELECT * FROM wmiMonitorBrightNessMethods WHERE Active=TRUE")
    minBrightness := 5 ; level below this is identical to this

    for i in monitors {
        curt := i.CurrentBrightness
        break
    }
    if (curt < minBrightness) ; parenthesis is necessary here
        curt := minBrightness
    toSet := curt + step
    if (toSet > 100)
        return
    if (toSet < minBrightness)
        toSet := minBrightness

    for i in monMethods {
        i.WmiSetBrightness(1, toSet)
        break
    }
}

@Rabelaiss
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@erbanku Thank you, yes I'm using that piece of code, but it does not let the brightness bar popup appear
image

I tried using the code posted by @Ahmad-f79 but it doesn't work (I'm on Windows 11)

@venturqx
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@Rabelaiss Did you find a solution to display the Brightness OSD on W11 ?

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