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@krrr
Last active November 12, 2024 21:47
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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
}
}
@dpw1
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dpw1 commented Oct 19, 2021

BTW share an AHK code for changing volume via Windows Key + Mouse Wheel (Scroll up & down) , enjoy.

#WheelUp::Volume_Up
#WheelDown::Volume_Down

That is very helpful, @erbanku , thank you!

@Write
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Write commented Oct 20, 2021

Is there a way to support "Regular" monitor ? I know that I can do it with this soft : https://github.com/blackholeearth/Win10_BrightnessSlider
I would love it to for this script to support ddc/ci monitors idk if that easy ¯\(ツ)

As long as we are in useful scripts, here's my script to change volume on task bar hover + scroll

I also use Ctrl + Scroll + Hover Task bar to change Brightness with flux and Color With Alt+ Scroll + Hover Task Bar
(I currently use f.lux to set the brightness but AFAIK it only fake a lower brightness, it doesn't actually reduce the backlighting)

;-----------------------------------------------------------------------------
; Change volume using scroll wheel over taskbar / sound
;-----------------------------------------------------------------------------
#If MouseIsOver("ahk_class Shell_TrayWnd") OR MouseIsOver("ahk_class Shell_SecondaryTrayWnd")

    ; Flux Brightness
    ; DOWN
    ^WheelDown::
        SendInput, {alt down}{PgDn down}{PgDn up}{alt up}
    Return

    ; UP
    ^WheelUp::
        SendInput, {alt down}{PgUp down}{PgUp up}{alt up}
    Return
    ; End Brightness

    ; Flux colors
    ; DOWN
    !WheelDown::
        SendInput, {Alt down}{Shift Down}{PgDn down}{PgDn up}{Shift Up}{alt up}
    Return

    ; UP
    !WheelUp::
        SendInput, {Alt down}{Shift Down}{PgUp down}{PgUp up}{Shift Up}{alt up}
    Return
    ; End colors


    WheelUp::
    Send {Volume_Up}
    Send {Volume_Up}
    return

    WheelDown::
    Send {Volume_Down}
    Send {Volume_Down}
    Return

    MButton::
    Send {Volume_Mute}
    Return

    MouseIsOver(WinTitle) {
        MouseGetPos,,, Win
        return WinExist(WinTitle . " ahk_id " . Win)
    }
#If
Return

@krrr
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Author

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 ?

@sameert89
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sameert89 commented Apr 26, 2024

Updated Script for AHK v2. I could not get the OS brightness popup to work, So I implemented my own tooltip.

; Brightness Control ;

+WheelDown::
{
  AdjustScreenBrightness(-3)
  return
}

+WheelUp::
{
  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 := 0

    curt := 0 
    for monitor in monitors {
        curt := monitor.CurrentBrightness
        break
    }
    if (curt < minBrightness) {  
        curt := minBrightness
    }
    toSet := curt + step
    if (toSet > 100) {
        ToolTip "Brightness: 100%"
        return
    }
    if (toSet < minBrightness) {
        toSet := minBrightness
    }

    for method in monMethods {
        method.WmiSetBrightness(1, toSet)
        break
    }
    ToolTip "Brightness: " toSet "%"
    SetTimer RemoveToolTip, -1000  ; Remove tooltip after 1 second
}

RemoveToolTip(){
	ToolTip  ; Clears the tooltip
	return
}

@noticz
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noticz commented Nov 10, 2024

@venturqx, @Rabelaiss
Here is my updated code with windows GUI brightness overlay... working on my Lenovo laptop with Win 10.

#SingleInstance, Force

; Mouse scroll up and down holding shift
+WheelDown::
{
	AdjustScreenBrightness(-10)
	BrightnessOSD()
	return
}

+WheelUp::
{
	AdjustScreenBrightness(10)
	BrightnessOSD()
	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 := 0

    curt := 0 
    for monitor in monitors {
        curt := monitor.CurrentBrightness
        break
    }
    if (curt < minBrightness) {  
        curt := minBrightness
    }
    toSet := curt + step
    if (toSet > 100) {
        return
    }
    if (toSet < minBrightness) {
        toSet := minBrightness
    }

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

BrightnessOSD() {
	static PostMessagePtr := DllCall("GetProcAddress", "Ptr", DllCall("GetModuleHandle", "Str", "user32.dll", "Ptr"), "AStr", A_IsUnicode ? "PostMessageW" : "PostMessageA", "Ptr")
	 ,WM_SHELLHOOK := DllCall("RegisterWindowMessage", "Str", "SHELLHOOK", "UInt")
	static FindWindow := DllCall("GetProcAddress", "Ptr", DllCall("GetModuleHandle", "Str", "user32.dll", "Ptr"), "AStr", A_IsUnicode ? "FindWindowW" : "FindWindowA", "Ptr")
	HWND := DllCall(FindWindow, "Str", "NativeHWNDHost", "Str", "", "Ptr")
	IF !(HWND) {
		try IF ((shellProvider := ComObjCreate("{C2F03A33-21F5-47FA-B4BB-156362A2F239}", "{00000000-0000-0000-C000-000000000046}"))) {
			try IF ((flyoutDisp := ComObjQuery(shellProvider, "{41f9d2fb-7834-4ab6-8b1b-73e74064b465}", "{41f9d2fb-7834-4ab6-8b1b-73e74064b465}"))) {
				DllCall(NumGet(NumGet(flyoutDisp+0)+3*A_PtrSize), "Ptr", flyoutDisp, "Int", 0, "UInt", 0)
				 ,ObjRelease(flyoutDisp)
			}
			ObjRelease(shellProvider)
		}
		HWND := DllCall(FindWindow, "Str", "NativeHWNDHost", "Str", "", "Ptr")
	}
	DllCall(PostMessagePtr, "Ptr", HWND, "UInt", WM_SHELLHOOK, "Ptr", 0x37, "Ptr", 0)
}

@uvvvvs
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uvvvvs commented Nov 12, 2024

If there was a way to adjust the brightness through "hovering the mouse on the top part of screen and then using the mouse wheel", instead of pressing the Shift key on the keyboard while using the mouse wheel would be a great, speedy action and yet more practical to my mind.
Could the current code be written this way? I did not have the knowledge to write it myself :(

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