Jas monitoru můžete spravovat pomocífunkční klávesy na klávesnici. Když klepnete na tlačítka pro zvýšení nebo snížení jasu, Windows 10 sníží jas o určitou úroveň. Při použití vyhrazených tlačítek neexistuje způsob, jak ovládat úrovně jasu. Pokud chcete jemnější ovládání, budete muset použít posuvník jasu. Pokud chcete ovládat úrovně jasu při změně jasu pomocí klávesnice, můžete tak učinit pomocí skriptu AutoHotkey.
VAROVÁNÍ: SPOILER: Přejděte dolů a podívejte se na video tutoriál na konci tohoto článku.

Úrovně přírůstku jasu
Ujistěte se, že máte v systému nainstalovanou funkci AutoHotkey.
Otevřete Poznámkový blok a vložte do něj následující. Tento skript napsal uživatel Reddit yet_another_usr.
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("powrprofPowerDuplicateScheme", "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("powrprofPowerReadValueIncrement", "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("powrprofPowerReadValueMin", "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("powrprofPowerReadValueMax", "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() }
Na samém konci vložte následující. Toto je část skriptu, kterou budete upravovat podle svých vlastních potřeb. Následující nastavení mění jas pomocí kláves Page Up a Page Down na klávesnici. Změní se o 10, tj. Když jednou klepnete na klávesu Page Up, jas se zvýší o deset úrovní.
Úpravy úrovní podle potřeby. Například můžete změnit na 1 a -1, abyste získali lepší kontrolu nad jasem.
BS := new BrightnessSetter() PgUp::BS.SetBrightness(10) PgDn::BS.SetBrightness(-10)

Uložte skript s příponou AHK a spusťte jej. Pomocí tlačítek, které jste nastavili, upravte jas.
Komentáře