j0kky

OpenHardwareMonitorLib.dll COM problem

17 posts in this topic

#1 ·  Posted (edited)

Hi guys,

I'm trying to use the Open Hardware Monitor library to read some values about the hardware. I know that I could run directly OpenHardwareMonitor.exe and read from WMI but I want to use the library.

It is written in C# but I've read from >this topic I can use RegAsm to register the types in the registry so I could run the classes in the library as COM objects.

I've downloaded the source, changed COMVISIBLE property to TRUE and compiled the library with MSBuild.exe

I would convert this (or this) script to Autoit but after some lines of code I get an error: "Invalid pointer".

I don't understand why I get that error, I don't think it's cause RegAsm because it gives me a warning but then it does its job registering the types.

#RequireAdmin
$RegAsm_path = "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm" ; CHECK YOUR VERSION!!!
$foo = Run($RegAsm_path & " /codebase /nologo OpenHardwareMonitorlib.dll", "", @SW_HIDE, 0x2 + 0x4)
$std = _Read_Std($foo)
MsgBox(0,$foo,$std)

$oMyError = ObjEvent("AutoIt.Error","MyErrFunc")

$cp = ObjCreate("OpenHardwareMonitor.Hardware.Computer")
If IsObj($cp) Then MsgBox(0,"OpenHardwareMonitor.Hardware.Computer","Object created")
$cp.Open() ; <--------------- ERROR

RunWait($RegAsm_path & " /nologo /unregister OpenHardwareMonitorlib.dll", "", @SW_HIDE)

Func MyErrFunc()
    $HexNumber=hex($oMyError.number,8)
    Msgbox(0,"","We intercepted a COM Error !" & @CRLF & _
        "Number is: " & $HexNumber & @CRLF & _
        "Windescription is: " & $oMyError.windescription & @CRLF & _
        "Source is: " & $oMyError.source & @CRLF & _
        "Description is: " & $oMyError.description & @CRLF & _
        "Script line is: " & $oMyError.scriptline)
    RunWait($RegAsm_path & " /nologo /unregister OpenHardwareMonitorlib.dll", "", @SW_HIDE)
    Exit
Endfunc

Func _Read_Std($handle)
    Local $s
    While 1
        $s &= StdoutRead($handle)
        If @error Then ExitLoop
        $s &= StderrRead($handle)
        If @error Then ExitLoop
    WEnd
    Return $s
EndFunc 

I'll attach the compiled dll but you need to check .NET Framework folder first.

Thank you at all.

Edited by j0kky

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#2 ·  Posted (edited)

Add msgbox after $CP.Open

Edit: and say what you notice

Edited by mLipok

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Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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nothing, nothing can happen... COM error handling function contains an "exit" statement and the script ends before executing everything after $cp.Open (that generates the COM error)

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;~ $cp = ObjCreate("OpenHardwareMonitor.Hardware.Computer")
$cp = ObjCreate("OpenHardwareMonitorLib")


Signature beginning:   Wondering who uses AutoIT and what it can be used for ?
* GHAPI UDF - modest begining - comunication with GitHub REST API *
ADO.au3 UDF     POP3.au3 UDF     XML.au3 UDF    How to use IE.au3  UDF with  AutoIt v3.3.14.x  for other useful stuff click the following button

Spoiler

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API *

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"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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"Invalid Class String" COM error.

In fact this is what RegAsm adds to the registry: 

REGEDIT4

[HKEY_CLASSES_ROOT\Record\{1FD2DBF2-D8C3-3E57-B448-37196EB12D9C}\0.6.0.11]
"Class"="OpenHardwareMonitor.Hardware.ControlMode"
"Assembly"="OpenHardwareMonitorLib, Version=0.6.0.11, Culture=neutral, PublicKeyToken=null"
"RuntimeVersion"="v2.0.50727"
"CodeBase"="file:///C:/Users/gianluca/Desktop/lavoro/openhardwaremonitorlib.dll"

[HKEY_CLASSES_ROOT\OpenHardwareMonitor.Hardware.Computer]
@="OpenHardwareMonitor.Hardware.Computer"

[HKEY_CLASSES_ROOT\OpenHardwareMonitor.Hardware.Computer\CLSID]
@="{5E652471-D269-3567-BB38-DCEBFF5669CF}"

[HKEY_CLASSES_ROOT\CLSID\{5E652471-D269-3567-BB38-DCEBFF5669CF}]
@="OpenHardwareMonitor.Hardware.Computer"

[HKEY_CLASSES_ROOT\CLSID\{5E652471-D269-3567-BB38-DCEBFF5669CF}\InprocServer32]
@="mscoree.dll"
"ThreadingModel"="Both"
"Class"="OpenHardwareMonitor.Hardware.Computer"
"Assembly"="OpenHardwareMonitorLib, Version=0.6.0.11, Culture=neutral, PublicKeyToken=null"
"RuntimeVersion"="v2.0.50727"
"CodeBase"="file:///C:/Users/gianluca/Desktop/lavoro/openhardwaremonitorlib.dll"

[HKEY_CLASSES_ROOT\CLSID\{5E652471-D269-3567-BB38-DCEBFF5669CF}\InprocServer32\0.6.0.11]
"Class"="OpenHardwareMonitor.Hardware.Computer"
"Assembly"="OpenHardwareMonitorLib, Version=0.6.0.11, Culture=neutral, PublicKeyToken=null"
"RuntimeVersion"="v2.0.50727"
"CodeBase"="file:///C:/Users/gianluca/Desktop/lavoro/openhardwaremonitorlib.dll"

[HKEY_CLASSES_ROOT\CLSID\{5E652471-D269-3567-BB38-DCEBFF5669CF}\ProgId]
@="OpenHardwareMonitor.Hardware.Computer"

[HKEY_CLASSES_ROOT\CLSID\{5E652471-D269-3567-BB38-DCEBFF5669CF}\Implemented Categories\{62C8FE65-4EBB-45E7-B440-6E39B2CDBF29}]

[HKEY_CLASSES_ROOT\Record\{E4E64F96-C708-381E-8380-93DF59B324B0}\0.6.0.11]
"Class"="OpenHardwareMonitor.Hardware.HardwareType"
"Assembly"="OpenHardwareMonitorLib, Version=0.6.0.11, Culture=neutral, PublicKeyToken=null"
"RuntimeVersion"="v2.0.50727"
"CodeBase"="file:///C:/Users/gianluca/Desktop/lavoro/openhardwaremonitorlib.dll"

[HKEY_CLASSES_ROOT\Record\{DFC56287-93E1-3B82-8F95-5F4268CB0401}\0.6.0.11]
"Class"="OpenHardwareMonitor.Hardware.SensorType"
"Assembly"="OpenHardwareMonitorLib, Version=0.6.0.11, Culture=neutral, PublicKeyToken=null"
"RuntimeVersion"="v2.0.50727"
"CodeBase"="file:///C:/Users/gianluca/Desktop/lavoro/openhardwaremonitorlib.dll"

[HKEY_CLASSES_ROOT\Record\{6042D116-95C1-3C8A-B8DC-D0E6C8F5BA07}\0.6.0.11]
"Class"="OpenHardwareMonitor.Hardware.SensorValue"
"Assembly"="OpenHardwareMonitorLib, Version=0.6.0.11, Culture=neutral, PublicKeyToken=null"
"RuntimeVersion"="v2.0.50727"
"CodeBase"="file:///C:/Users/gianluca/Desktop/lavoro/openhardwaremonitorlib.dll"

And I've attached an image of what OLEView shows.

post-74111-0-02347200-1404134953_thumb.j

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#6 ·  Posted (edited)

New issue :) thanks to this patch I could write a new version of OpenHardwareMonitorLib.dll, now I can run my script without errors, till I try to enumerate a collection: then Autoit crashes without errors.
It seems to be an Autoit managing-object related issue and not an external library issue, I'll attach the new version of the library.
Have you got any idea?

#RequireAdmin
$RegAsm_path = "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm" ; CHECK YOUR VERSION!!!
$foo = Run($RegAsm_path & " /codebase /nologo OpenHardwareMonitorlib.dll", "", @SW_HIDE, 0x2 + 0x4)
Sleep(1000)

$oMyError = ObjEvent("AutoIt.Error", "MyErrFunc")

$cp = ObjCreate("OpenHardwareMonitor.Hardware.Computer")
If IsObj($cp) Then
    MsgBox(0, "OpenHardwareMonitor.Hardware.Computer", "Object created")
    $cp.Open()
    $cp.GPUEnabled = True
    $cp.CPUEnabled = True
    $a = $cp.Hardware
    MsgBox(0,"Var type",VarGetType($a))

    For $HWItem In $a ;---------> error
        MsgBox(0, 1, "hello")
    Next
Else
    MsgBox(16, "ERROR", "Object not created")
EndIf


RunWait($RegAsm_path & " /nologo /unregister OpenHardwareMonitorlib.dll", "", @SW_HIDE)

Func MyErrFunc()
    $HexNumber = Hex($oMyError.number, 8)
    MsgBox(0, "", "We intercepted a COM Error !" & @CRLF & _
            "Number is: " & $HexNumber & @CRLF & _
            "Windescription is: " & $oMyError.windescription & @CRLF & _
            "Source is: " & $oMyError.source & @CRLF & _
            "Description is: " & $oMyError.description & @CRLF & _
            "Script line is: " & $oMyError.scriptline)
    RunWait($RegAsm_path & " /nologo /unregister OpenHardwareMonitorlib.dll", "", @SW_HIDE)
    Exit
EndFunc   ;==>MyErrFunc

Func _Read_Std($handle)
    Local $s
    While 1
        $s &= StdoutRead($handle)
        If @error Then ExitLoop
        $s &= StderrRead($handle)
        If @error Then ExitLoop
    WEnd
    Return $s
EndFunc   ;==>_Read_Std

P.S: extract the dll in the same directory of the script and check your .NET Framework version  :bye:

EDIT:

I adjusted the code formatting

OpenHardwareMonitorLib.zip

Edited by j0kky

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We need more information to track down the error:

Which version of AutoIt?

What's the result of VarGetType($a)?

Do you get any messages from the COM error handler?


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Autoit v3.3.12.0

VarGetType($a) = "Object"

No error from internal COM error handler, it is an hard crash ("Autoit v3 script has stopped working" in english):

post-74111-0-24725900-1425117715_thumb.j

Useless crash data:

Descrizione:
  Stopped working

Firma problema:
  Nome evento problema: APPCRASH
  Application Name: autoit3.exe
  Application Version:  3.3.12.0
  Application Timestamp:    538b6694
  Fault Module Name:    autoit3.exe
  Fault Module Version: 3.3.12.0
  Fault Module Timestamp:   538b6694
  Exception Code:   c0000005
  Exception Offset: 0005bb71
  Versione SO:  6.1.7601.2.1.0.768.3
  ID impostazioni locali:   1040

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The history for the latest AutoIt beta version doesn't list fixes for COM problems so I fear installing the latest beta won't help.


My UDFs and Tutorials:

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If $a.count returns a value you could loop through the collection like an array. Maybe this works.


My UDFs and Tutorials:

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Count method is not exported by the library and the COM error handler reports a NULL pointer error if I try to do $a.Count.

This is what ILSpy shows about method and properties exported with Computer Class (on the left) and the source code of Hardware method (on the right):

post-74111-0-57527400-1425122759_thumb.j

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#15 ·  Posted (edited)

"Business reading"? Ehm... what?

EDIT:

I tried something about c0000005: http://stackoverflow.com/a/17169463/3812399

But it doesn't really help until I will inspect $a to see if it is empty or something else.

Edited by j0kky

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Just a clarification, the library works without problems if I don't try to enumerate that collection, for example if you run this script it works:

#RequireAdmin
$RegAsm_path = "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm" ; CHECK YOUR VERSION!!!
$foo = Run($RegAsm_path & " /codebase /nologo OpenHardwareMonitorlib.dll", "", @SW_HIDE, 0x2 + 0x4)
Sleep(1000)

$oMyError = ObjEvent("AutoIt.Error", "MyErrFunc")

$cp = ObjCreate("OpenHardwareMonitor.Hardware.Computer")
If IsObj($cp) Then
    MsgBox(0, "OpenHardwareMonitor.Hardware.Computer", "Object created")
    $cp.Open()
    $cp.GPUEnabled = True
    $cp.CPUEnabled = True
    $a = $cp.Hardware
    MsgBox(0,"Var type",VarGetType($a))
    FileWrite(@DesktopDir & "\log.txt", $cp.GetReport)

Else
    MsgBox(16, "ERROR", "Object not created")
EndIf


RunWait($RegAsm_path & " /nologo /unregister OpenHardwareMonitorlib.dll", "", @SW_HIDE)

Func MyErrFunc()
    $HexNumber = Hex($oMyError.number, 8)
    MsgBox(0, "", "We intercepted a COM Error !" & @CRLF & _
            "Number is: " & $HexNumber & @CRLF & _
            "Windescription is: " & $oMyError.windescription & @CRLF & _
            "Source is: " & $oMyError.source & @CRLF & _
            "Description is: " & $oMyError.description & @CRLF & _
            "Script line is: " & $oMyError.scriptline)
    RunWait($RegAsm_path & " /nologo /unregister OpenHardwareMonitorlib.dll", "", @SW_HIDE)
    Exit
EndFunc   ;==>MyErrFunc

Func _Read_Std($handle)
    Local $s
    While 1
        $s &= StdoutRead($handle)
        If @error Then ExitLoop
        $s &= StderrRead($handle)
        If @error Then ExitLoop
    WEnd
    Return $s
EndFunc   ;==>_Read_Std

But GetReport method returns a string, not an array as .Hardware method.

Is there any way to look into $a (other else than Count)?

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      The funny thing is if I don't wait the 5 seconds (before the half transparent arrows disappear) closing the gui then I will get no win error message.
      If I comment _AcrobatShow() out then the error never appears. So it seemed to be an acrobat reader issue. Every week at work there are a lot of updates, but there is no chance to know which one. But since one update this error happens.
      Any solutions? Regards, Conrad
    • genius257
      By genius257
      I've made a library, based on AutoItObject UDF with the goal of implementing getter and setter functionality and make it possible to define new object properties in as few steps as possible.
      Thank you to @trancexx for getting me on the right track, and all users in Hooking into the IDispatch interface for the code to get me going.
      If I've forgotten to add credit, please let me know
      Example:
      #include "AutoItObject_Internal.au3" $myCar = IDispatch() $myCar.make = 'Ford' $myCar.model = 'Mustang' $myCar.year = 1969 $myCar.__defineGetter('DisplayCar', DisplayCar) Func DisplayCar($oThis) Return 'A Beautiful ' & $oThis.parent.year & ' ' & $oThis.parent.make & ' ' & $oThis.parent.model EndFunc MsgBox(0, "", $myCar.DisplayCar) More examples: https://github.com/genius257/AutoIt-projects/tree/master/AutoItObject Internal/Examples
      Version: 1.0.3
      AutoItObject_Internal.au3
      Documentation:
       

      Edit2 (19th March 2017):
      First of all, sorry about the lack of updates on this project. I always start too many projects and end up ignoring old projects, if I run into problems ^^'.
      So I've started moving my AutoIt scripts to GitHub. I will still post the most recent script version here.
    • zetaimmersion
      By zetaimmersion
      Hi all. 
      I am trying to do 2 things but i cannot seem to get any traction on how to read/implement this idea.
      Premise: PowerPoint file in C\temp\presentation.pptx that contains on the first slide 2 entries as "<one>" and "<two>" which need to be replaced with "user1" and "user2", then a silent Outlook send mail containing the file with a predefined body and subject.
      I narrowed it down to COM objects as the Office does not like intrusive open AutoIt functions. I installed OLE/COM Object Viewer to understand how to create the commands but i am still stuck. So far i am trying to user water's code but i suck
      COM object i was originally trying to modify
      Dim $oPPT, $oPres $oPPT = ObjCreate("PowerPoint.Application") $oPPT.Visible = True $oPres = $oPPT.Presentations.Read Water's code below (0.1% modified)
      #include <File.au3> #include "PowerPoint.au3" #include <misc.au3> Global $sFile = "C:\temp\presentation.pptx" Global $sString2Search = "<username>", $sString2Replace = "Password", $iReplaceOnce = 1, $sFullLogFile = "C:\temp\pptxlog.txt" _ProcessPpt($sFile) Func _ProcessPpt($sFile) $oApp = _PPT_PowerPointApp() Local $bChange = False Local $oInterface = $oApp.Presentations Local $oPresentation = $oInterface.Open($sFile, False, False, False) If @error Then _FileWriteLog($sFullLogFile, "E Error " & @error & " opening File " & $sFile) Return SetError(1, 0, 0) EndIf ;it does not even open my file and from here not sure how to read the text and replace it EndFunc ;==>_ProcessPpt  
    • YellowLab
      By YellowLab
      I am having a very unique, but repeatable problem with ImageMagick COM interface. Here are the applicable lines of code:
      $oIM=ObjCreate("ImageMagickObject.MagickImage.1")
      and then later on...
      $oIM.Convert(String($arFileList[$nFileIndex])&'[0]',"-alpha", "remove",@TempDir&"\temp.jpg")
      the array points to a pdf file with the "convert" command converting the first page of the pdf to a jpg with any alpha layer removed.
      Every time, without fail, the first time I run the script on a freshly booted machine it crashes on the $oIM.Convert command. It does this if it isn't compiled and says there is an error executing the command on the object. If compiled, i get an error that autoit has stopped responding. Anytime I run the script, compiled or not, after this initial crash everything works perfectly fine.
      I am totally at a loss as to why this is occurring and how to correct it.
    • Javik
      By Javik
      Is there a way to read data directly from the Windows Component Object Model (COM) interface?
      I am trying to make a really simple disk space reporter tool for accounts on an Active Directory domain, to read the disk quota limit for the logged on user's home directory, and report how much disk space they are currently using.
      ,
      MSDN:  IDiskQuotaUser interface
      https://msdn.microsoft.com/en-us/library/windows/desktop/aa365033(v=vs.85).aspx
      GetQuotaLimit
      GetQuotaUsed