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BrightnessSetter: set laptop brightness and show Windows 10's native brightness OSD (https://github.com/qwerty12/AutoHotkeyScripts/tree/master/LaptopBrightnessSetter)
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| class BrightnessSetter { | |
| ; qwerty12 - 27/05/17 | |
| ; https://github.com/qwerty12/AutoHotkeyScripts/tree/master/LaptopBrightnessSetter | |
| static _WM_POWERBROADCAST := 0x218, _osdHwnd := 0, hPowrprofMod := DllCall("LoadLibrary", "Str", "powrprof.dll", "Ptr") | |
| __New() { | |
| if (BrightnessSetter.IsOnAc(AC)) | |
| this._AC := AC | |
| if ((this.pwrAcNotifyHandle := DllCall("RegisterPowerSettingNotification", "Ptr", A_ScriptHwnd, "Ptr", BrightnessSetter._GUID_ACDC_POWER_SOURCE(), "UInt", DEVICE_NOTIFY_WINDOW_HANDLE := 0x00000000, "Ptr"))) ; Sadly the callback passed to *PowerSettingRegister*Notification runs on a new threadl | |
| OnMessage(this._WM_POWERBROADCAST, ((this.pwrBroadcastFunc := ObjBindMethod(this, "_On_WM_POWERBROADCAST")))) | |
| } | |
| __Delete() { | |
| if (this.pwrAcNotifyHandle) { | |
| OnMessage(BrightnessSetter._WM_POWERBROADCAST, this.pwrBroadcastFunc, 0) | |
| ,DllCall("UnregisterPowerSettingNotification", "Ptr", this.pwrAcNotifyHandle) | |
| ,this.pwrAcNotifyHandle := 0 | |
| ,this.pwrBroadcastFunc := "" | |
| } | |
| } | |
| SetBrightness(increment, jump := False, showOSD := True, autoDcOrAc := -1, ptrAnotherScheme := 0) | |
| { | |
| static PowerGetActiveScheme := DllCall("GetProcAddress", "Ptr", BrightnessSetter.hPowrprofMod, "AStr", "PowerGetActiveScheme", "Ptr") | |
| ,PowerSetActiveScheme := DllCall("GetProcAddress", "Ptr", BrightnessSetter.hPowrprofMod, "AStr", "PowerSetActiveScheme", "Ptr") | |
| ,PowerWriteACValueIndex := DllCall("GetProcAddress", "Ptr", BrightnessSetter.hPowrprofMod, "AStr", "PowerWriteACValueIndex", "Ptr") | |
| ,PowerWriteDCValueIndex := DllCall("GetProcAddress", "Ptr", BrightnessSetter.hPowrprofMod, "AStr", "PowerWriteDCValueIndex", "Ptr") | |
| ,PowerApplySettingChanges := DllCall("GetProcAddress", "Ptr", BrightnessSetter.hPowrprofMod, "AStr", "PowerApplySettingChanges", "Ptr") | |
| if (increment == 0 && !jump) { | |
| if (showOSD) | |
| BrightnessSetter._ShowBrightnessOSD() | |
| return | |
| } | |
| if (!ptrAnotherScheme ? DllCall(PowerGetActiveScheme, "Ptr", 0, "Ptr*", currSchemeGuid, "UInt") == 0 : DllCall("powrprof\PowerDuplicateScheme", "Ptr", 0, "Ptr", ptrAnotherScheme, "Ptr*", currSchemeGuid, "UInt") == 0) { | |
| if (autoDcOrAc == -1) { | |
| if (this != BrightnessSetter) { | |
| AC := this._AC | |
| } else { | |
| if (!BrightnessSetter.IsOnAc(AC)) { | |
| DllCall("LocalFree", "Ptr", currSchemeGuid, "Ptr") | |
| return | |
| } | |
| } | |
| } else { | |
| AC := !!autoDcOrAc | |
| } | |
| currBrightness := 0 | |
| if (jump || BrightnessSetter._GetCurrentBrightness(currSchemeGuid, AC, currBrightness)) { | |
| maxBrightness := BrightnessSetter.GetMaxBrightness() | |
| ,minBrightness := BrightnessSetter.GetMinBrightness() | |
| if (jump || !((currBrightness == maxBrightness && increment > 0) || (currBrightness == minBrightness && increment < minBrightness))) { | |
| if (currBrightness + increment > maxBrightness) | |
| increment := maxBrightness | |
| else if (currBrightness + increment < minBrightness) | |
| increment := minBrightness | |
| else | |
| increment += currBrightness | |
| if (DllCall(AC ? PowerWriteACValueIndex : PowerWriteDCValueIndex, "Ptr", 0, "Ptr", currSchemeGuid, "Ptr", BrightnessSetter._GUID_VIDEO_SUBGROUP(), "Ptr", BrightnessSetter._GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS(), "UInt", increment, "UInt") == 0) { | |
| ; PowerApplySettingChanges is undocumented and exists only in Windows 8+. Since both the Power control panel and the brightness slider use this, we'll do the same, but fallback to PowerSetActiveScheme if on Windows 7 or something | |
| if (!PowerApplySettingChanges || DllCall(PowerApplySettingChanges, "Ptr", BrightnessSetter._GUID_VIDEO_SUBGROUP(), "Ptr", BrightnessSetter._GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS(), "UInt") != 0) | |
| DllCall(PowerSetActiveScheme, "Ptr", 0, "Ptr", currSchemeGuid, "UInt") | |
| } | |
| } | |
| if (showOSD) | |
| BrightnessSetter._ShowBrightnessOSD() | |
| } | |
| DllCall("LocalFree", "Ptr", currSchemeGuid, "Ptr") | |
| } | |
| } | |
| IsOnAc(ByRef acStatus) | |
| { | |
| static SystemPowerStatus | |
| if (!VarSetCapacity(SystemPowerStatus)) | |
| VarSetCapacity(SystemPowerStatus, 12) | |
| if (DllCall("GetSystemPowerStatus", "Ptr", &SystemPowerStatus)) { | |
| acStatus := NumGet(SystemPowerStatus, 0, "UChar") == 1 | |
| return True | |
| } | |
| return False | |
| } | |
| GetDefaultBrightnessIncrement() | |
| { | |
| static ret := 10 | |
| DllCall("powrprof\PowerReadValueIncrement", "Ptr", BrightnessSetter._GUID_VIDEO_SUBGROUP(), "Ptr", BrightnessSetter._GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS(), "UInt*", ret, "UInt") | |
| return ret | |
| } | |
| GetMinBrightness() | |
| { | |
| static ret := -1 | |
| if (ret == -1) | |
| if (DllCall("powrprof\PowerReadValueMin", "Ptr", BrightnessSetter._GUID_VIDEO_SUBGROUP(), "Ptr", BrightnessSetter._GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS(), "UInt*", ret, "UInt")) | |
| ret := 0 | |
| return ret | |
| } | |
| GetMaxBrightness() | |
| { | |
| static ret := -1 | |
| if (ret == -1) | |
| if (DllCall("powrprof\PowerReadValueMax", "Ptr", BrightnessSetter._GUID_VIDEO_SUBGROUP(), "Ptr", BrightnessSetter._GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS(), "UInt*", ret, "UInt")) | |
| ret := 100 | |
| return ret | |
| } | |
| _GetCurrentBrightness(schemeGuid, AC, ByRef currBrightness) | |
| { | |
| static PowerReadACValueIndex := DllCall("GetProcAddress", "Ptr", BrightnessSetter.hPowrprofMod, "AStr", "PowerReadACValueIndex", "Ptr") | |
| ,PowerReadDCValueIndex := DllCall("GetProcAddress", "Ptr", BrightnessSetter.hPowrprofMod, "AStr", "PowerReadDCValueIndex", "Ptr") | |
| return DllCall(AC ? PowerReadACValueIndex : PowerReadDCValueIndex, "Ptr", 0, "Ptr", schemeGuid, "Ptr", BrightnessSetter._GUID_VIDEO_SUBGROUP(), "Ptr", BrightnessSetter._GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS(), "UInt*", currBrightness, "UInt") == 0 | |
| } | |
| _ShowBrightnessOSD() | |
| { | |
| static PostMessagePtr := DllCall("GetProcAddress", "Ptr", DllCall("GetModuleHandle", "Str", "user32.dll", "Ptr"), "AStr", A_IsUnicode ? "PostMessageW" : "PostMessageA", "Ptr") | |
| ,WM_SHELLHOOK := DllCall("RegisterWindowMessage", "Str", "SHELLHOOK", "UInt") | |
| if A_OSVersion in WIN_VISTA,WIN_7 | |
| return | |
| BrightnessSetter._RealiseOSDWindowIfNeeded() | |
| ; Thanks to YashMaster @ https://github.com/YashMaster/Tweaky/blob/master/Tweaky/BrightnessHandler.h for realising this could be done: | |
| if (BrightnessSetter._osdHwnd) | |
| DllCall(PostMessagePtr, "Ptr", BrightnessSetter._osdHwnd, "UInt", WM_SHELLHOOK, "Ptr", 0x37, "Ptr", 0) | |
| } | |
| _RealiseOSDWindowIfNeeded() | |
| { | |
| static IsWindow := DllCall("GetProcAddress", "Ptr", DllCall("GetModuleHandle", "Str", "user32.dll", "Ptr"), "AStr", "IsWindow", "Ptr") | |
| if (!DllCall(IsWindow, "Ptr", BrightnessSetter._osdHwnd) && !BrightnessSetter._FindAndSetOSDWindow()) { | |
| BrightnessSetter._osdHwnd := 0 | |
| 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) | |
| if (BrightnessSetter._FindAndSetOSDWindow()) | |
| return | |
| } | |
| ; who knows if the SID & IID above will work for future versions of Windows 10 (or Windows 8). Fall back to this if needs must | |
| Loop 2 { | |
| SendEvent {Volume_Mute 2} | |
| if (BrightnessSetter._FindAndSetOSDWindow()) | |
| return | |
| Sleep 100 | |
| } | |
| } | |
| } | |
| _FindAndSetOSDWindow() | |
| { | |
| static FindWindow := DllCall("GetProcAddress", "Ptr", DllCall("GetModuleHandle", "Str", "user32.dll", "Ptr"), "AStr", A_IsUnicode ? "FindWindowW" : "FindWindowA", "Ptr") | |
| return !!((BrightnessSetter._osdHwnd := DllCall(FindWindow, "Str", "NativeHWNDHost", "Str", "", "Ptr"))) | |
| } | |
| _On_WM_POWERBROADCAST(wParam, lParam) | |
| { | |
| ;OutputDebug % &this | |
| if (wParam == 0x8013 && lParam && NumGet(lParam+0, 0, "UInt") == NumGet(BrightnessSetter._GUID_ACDC_POWER_SOURCE()+0, 0, "UInt")) { ; PBT_POWERSETTINGCHANGE and a lazy comparison | |
| this._AC := NumGet(lParam+0, 20, "UChar") == 0 | |
| return True | |
| } | |
| } | |
| _GUID_VIDEO_SUBGROUP() | |
| { | |
| static GUID_VIDEO_SUBGROUP__ | |
| if (!VarSetCapacity(GUID_VIDEO_SUBGROUP__)) { | |
| VarSetCapacity(GUID_VIDEO_SUBGROUP__, 16) | |
| ,NumPut(0x7516B95F, GUID_VIDEO_SUBGROUP__, 0, "UInt"), NumPut(0x4464F776, GUID_VIDEO_SUBGROUP__, 4, "UInt") | |
| ,NumPut(0x1606538C, GUID_VIDEO_SUBGROUP__, 8, "UInt"), NumPut(0x99CC407F, GUID_VIDEO_SUBGROUP__, 12, "UInt") | |
| } | |
| return &GUID_VIDEO_SUBGROUP__ | |
| } | |
| _GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS() | |
| { | |
| static GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__ | |
| if (!VarSetCapacity(GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__)) { | |
| VarSetCapacity(GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__, 16) | |
| ,NumPut(0xADED5E82, GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__, 0, "UInt"), NumPut(0x4619B909, GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__, 4, "UInt") | |
| ,NumPut(0xD7F54999, GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__, 8, "UInt"), NumPut(0xCB0BAC1D, GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__, 12, "UInt") | |
| } | |
| return &GUID_DEVICE_POWER_POLICY_VIDEO_BRIGHTNESS__ | |
| } | |
| _GUID_ACDC_POWER_SOURCE() | |
| { | |
| static GUID_ACDC_POWER_SOURCE_ | |
| if (!VarSetCapacity(GUID_ACDC_POWER_SOURCE_)) { | |
| VarSetCapacity(GUID_ACDC_POWER_SOURCE_, 16) | |
| ,NumPut(0x5D3E9A59, GUID_ACDC_POWER_SOURCE_, 0, "UInt"), NumPut(0x4B00E9D5, GUID_ACDC_POWER_SOURCE_, 4, "UInt") | |
| ,NumPut(0x34FFBDA6, GUID_ACDC_POWER_SOURCE_, 8, "UInt"), NumPut(0x486551FF, GUID_ACDC_POWER_SOURCE_, 12, "UInt") | |
| } | |
| return &GUID_ACDC_POWER_SOURCE_ | |
| } | |
| } | |
| BrightnessSetter_new() { | |
| return new BrightnessSetter() | |
| } |
Hi @Arora-Sir,
Thanks for letting me know. I can't promise I can fix the script for Windows 11 (displaying the brightness OSD on demand was a hack that YashMaster came up with), but I'll try and take a look over the weekend...
Hi everyone,
I'm quite new to AHK and have only basic skills in scripting. I tried to implement the script but if I try to assign a hotkey to the SetBrightness function (i.e. "CapsLock & v:: SetBrightness(1)") it gives me an error saying
"Error: Call to nonexisting function.
Specifically: SetBrightness(1)"
I have no clue what to do with this, because I rely mostly on try and error :-) Does anyone have a suggestion?
Thanks a lot!
why am i unable to get this script working when compiled
is it just me?
i like this code and i have been using it for literally years now
but i have nvr been able to compile it, so ive just been cramming it into other scripts i leave uncompiled
[not a great plan]
@perplex3
try
BS := new BrightnessSetter()
CapsLock::BS.SetBrightness(+1)
Hey 53901, thanks a lot!!
it works with
!up::BS.SetBrightness(+1)
!down::BS.SetBrightness(-1)
cheers!
Hi @Arora-Sir,
Thanks for letting me know. I can't promise I can fix the script for Windows 11 (displaying the brightness OSD on demand was a hack that YashMaster came up with), but I'll try and take a look over the weekend...
please fix it
Hello, is there any news/workaround to have this (osd) working on W11?
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Hi @qwerty12,
Windows 11 22H2 (the latest version) is somehow showing the Mute Volume OSD for a second, and the functionality isn't working properly after that. I've resolved this error temporarily by Hiding the OSD, i.e changing "showOSD = true" to "showOSD = false" at line 22. Can you please make the required changes, otherwise this code will only exist till the end of 🪟 1️⃣0️⃣
PS: Here's my AHK repository, where you can find more cool AHK scripts that I use in my daily life. 😄🔥