How to programmatically emulate battery in Windows workstation without battery device?

问题

For testing purposes I need to force Windows to think that it has battery on workstation PC.

Is there the way to fake/mock/emulate/simulate battery state/low level/charging/discharging in Windows workstation without battery device?

Can I set battery level programmatically on Windows?

回答1:

tl;dr: Use Windows Driver Testing Framework (WDTF) Runtime Libraries from Windows Driver Kit (WDK)

Long instruction:

Install Visual Studio with Windows Driver Kit (WDK)
Create virtual machine
Seach for WDK Test Target Setup x64-x64_en-us.msi in C:\Program Files (x86)\Windows Kits
Install WDK Test Target Setup x64-x64_en-us.msi on virtual machine.
In Visual Studio, in main menu Driver > Test > Configure Devices add virtual machine to install (WDTF) Runtime Libraries.
From virtual machine copy folder C:\Program Files (x86)\Windows Kits\10\Testing\Runtimes\WDTF\RunTime on your workstation
From RunTime folder run as administrator RegisterWDTF.exe

Output:

C:\RunTime>RegisterWDTF.exe
-Delete registry state.
-Get registry path.
-Register COM DLLs.
   Process "C:\RunTime\Actions\Deprecated\DeviceManagement.dll".
   Process "C:\RunTime\Actions\DeviceSupport\WDTFDeviceSupportAction.dll".
   Process "C:\RunTime\Actions\DrvPkgLibExt.dll".
      Not a COM DLL

   Process "C:\RunTime\Actions\EDT\WDTFEDTAction.dll".
   Process "C:\RunTime\Actions\IoSpy\WDTFIoAttackAction.dll".
   Process "C:\RunTime\Actions\IoSpy\WDTFIoSpyAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\SimpleIO_D3DTest.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFAnySimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFAudioSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFBluetoothSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFCDROMSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFMobileBroadbandSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFMUTT2STRESSSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFMUTT2TCDSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFNetworkSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFVolumeSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFWebcamSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFWirelessSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFWPDSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimulatedBattery\WDTFSimulatedBatterySystemAction.dll".
   Process "C:\RunTime\Actions\System\WDTFSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFConcurrentIOAction.dll".
   Process "C:\RunTime\Actions\WDTFCpuUtilizationSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverPackageAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverSetupDeviceAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverSetupSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverVerifierSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFFuzzTestAction.dll".
   Process "C:\RunTime\Actions\WDTFInterfaces\WDTFInterfaces.dll".
   Process "C:\RunTime\Actions\WDTFPNPAction.dll".
   Process "C:\RunTime\Actions\WDTFSUPAction.dll".
   Process "C:\WDTF.DLL".
-Update registry state.
-Install Drivers.
-Done

 WDTF Registration Successful

Now you can use COM object "WDTF2.WDTF" in your program language like in this VBScript example:

'
' Variable defenition 
'
Dim WDTF
Dim SimulatedBatterySystemSystemAction


'
' Create WDTF object
'
Set WDTF = CreateObject("WDTF2.WDTF")

'
'  Get your newly created SimulatedBatterySystem action interface
'
Set SimulatedBatterySystemSystemAction = WDTF.SystemDepot.ThisSystem.GetInterface("SimulatedBatterySystem")


'  enable the simulated battery
SimulatedBatterySystemSystemAction.EnableSimulatedBattery()

'  disable real batteries
SimulatedBatterySystemSystemAction.DisableRealBatteries()

'  set to DC power status
SimulatedBatterySystemSystemAction.SetSimulatedBatteryToDC()

'  set to 50% charge level
SimulatedBatterySystemSystemAction.SetSimulatedBatteryChargePercentage(50)

WScript.Sleep 10000 

'  set to AC power status
SimulatedBatterySystemSystemAction.SetSimulatedBatteryToAC()

'  enable real batteries
SimulatedBatterySystemSystemAction.EnableRealBatteries()

'  disable the simulated battery
SimulatedBatterySystemSystemAction.DisableSimulatedBattery()

Here all WDTF reference: https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/content/_dtf/

Just in case, Linux Fake battery module: https://github.com/hoelzro/linux-fake-battery-module

回答2:

Oleg's answer was fairly straightforward to follow but I was unable to make it simulate a battery - the actions to disable and enable the real battery did succeed.

PS C:\RunTime> .\RegisterWDTF.exe
This version of WDTF is compatible with Windows Build 17763.
-Delete registry state.
-Get registry path.
-Register COM DLLs.
   Process "C:\RunTime\Actions\Deprecated\DeviceManagement.dll".
   Process "C:\RunTime\Actions\DeviceSupport\WDTFDeviceSupportAction.dll".
   Process "C:\RunTime\Actions\DrvPkgLibExt.dll".
      Not a COM DLL

   Process "C:\RunTime\Actions\EDT\WDTFEDTAction.dll".
   Process "C:\RunTime\Actions\IoSpy\WDTFIoAttackAction.dll".
   Process "C:\RunTime\Actions\IoSpy\WDTFIoSpyAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\SimpleIO_D3DTest.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFAnySimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFAudioSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFBluetoothSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFCDROMSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFMobileBroadbandSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFMUTT2STRESSSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFMUTT2TCDSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFNetworkSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\wdtfsensorsiosimpleioaction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFVolumeSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFWebcamSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFWirelessSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimpleIO\WDTFWPDSimpleIoAction.dll".
   Process "C:\RunTime\Actions\SimulatedBattery\WDTFSimulatedBatterySystemAction.dll".
   Process "C:\RunTime\Actions\System\WDTFSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFConcurrentIOAction.dll".
   Process "C:\RunTime\Actions\WDTFCpuUtilizationSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverPackageAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverSetupDeviceAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverSetupSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFDriverVerifierSystemAction.dll".
   Process "C:\RunTime\Actions\WDTFFuzzTestAction.dll".
   Process "C:\RunTime\Actions\WDTFInterfaces\WDTFInterfaces.dll".
   Process "C:\RunTime\Actions\WDTFPNPAction.dll".
   Process "C:\RunTime\Actions\WDTFSUPAction.dll".
   Process "C:\RunTime\WDTF.DLL".
-Update registry state.
-Install Drivers.
-Done

 WDTF Registration Successful
PS C:\RunTime> cscript.exe .\fake-battery.vbs
Microsoft (R) Windows Script Host Version 5.812
Copyright (C) Microsoft Corporation. All rights reserved.

Loading Wex.Logger.dll from systemdata.cpp linep 922 failed.
WDTF_TARGET               : INFO  :  - GetInterface("SimulatedBatterySystem")
WDTF_TARGET               : INFO  :          Target: ORANGE
WDTF_SIMBATT              : INFO  : DisableRealBatteries()
WDTF_SIMBATT              : INFO  : EnableSimulatedBattery()
WDTF_SIMBATT              : ERROR : SimulatedBatterySystem critical error installing battbus device. HRESULT=0xE0000203
C:\RunTime\fake-battery.vbs(22, 1) WDTF.SimulatedBatterySystem.1: SimulatedBatterySystem critical error installing battbus device. HRESULT=0xE0000203

Unfortunately there is no information that I could find on the public Internet about these errors. Hopefully someone out there comes across this and knows what to do next!

edit: it appears as though Visual Studio installs various drivers in addition to the testing framework so simply copying RunTime folder is insufficient. I ended up adding my workstation as a full target using VS from another workstation. This then let me simulate the battery.

来源：https://stackoverflow.com/questions/50658822/how-to-programmatically-emulate-battery-in-windows-workstation-without-battery-d

标签

windows

battery