liet

How to get text written on the console by PowerShell write-host cmdlet?

9 posts in this topic

I am looking for a way to automate an interactive PowerShell script. In essence, it writes some data to the screen using the write-host cmdlet and then wait for keyboard input. I would like to be able to either run the PS script via AutoIT or run the PS script separately and make AutoIT focus on the window.

I can handle the input part using Send function, but I can't seem to be able to read the content of the window.

So far I have tried with StdoutRead, ConsoleRead and WinGetText, but I can't seem to be able to pull any text from the console window. If anyone has done something like this before, I would very much welcome the help with my problem.

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1 hour ago, Jos said:

Please show your code that you used with STDOutRead() so we can see whether that looks correct.

Jos

It goes something like this:

Local $iPID = Run('PowerShell.exe -executionpolicy Bypass -File "C:\Users\QKXC64\Desktop\script.ps1"')

Local $sOutput

For $i = 200 To 1 Step -1
    $sOutput &= StdoutRead($iPID)
    Sleep(25)
Next

MsgBox($MB_SYSTEMMODAL, "", "Received: " & @CRLF & @CRLF & $sOutput)

 

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53 minutes ago, liet said:

It goes something like this:

Something like this huh... ;)

Well that's not going to work as you clearly missed some parameter there.. just look at the example in StdOutRead().

Jos


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I have been playing around with this, as I am doing a lot with PowerCLI right now for managing VMware environments. You might think about wrapping it in a child GUI, like so (simple example):

#include <GUIEdit.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

Local $hGUI_Main, $hGUI_Child, $sPing, $sText = "", $editProgress

$hGUI_Main = GUICreate("Powershell Test", 300, 150)
$btnExit = GUICtrlCreateButton("Exit", 10, 100, 80, 30)
$btnGo = GUICtrlCreateButton("Execute", 200, 100, 80, 30)

    GUISetState(@SW_SHOW)

    _Create_Child($hGUI_Main)
    GUIRegisterMsg($WM_MOVE, "_Position_Child")

    While 1
        $iMsg = GUIGetMsg()
        Switch $iMsg
            Case $GUI_EVENT_CLOSE, $btnExit
                Exit
            Case $btnGo
                $sPing = "Ping www.Google.com"
                _SH_Child($hGUI_Main, $btnGo)
                Sleep(500)
                _execute()
        EndSwitch
    WEnd

    GUIDelete()


Func _execute()
    $sCMD = "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -command " & $sPing
    $pid = Run($sCMD, @SystemDir, @SW_HIDE, $STDIN_CHILD + $STDOUT_CHILD + $STDERR_CHILD)
    StdinWrite($pid)

    $sSTDOUT = ""
        While 1
            $sOutput = StdoutRead($pid)
            If @error Then ExitLoop
            If $sOutput <> "" Then
                $sText &= $sOutput & @CRLF
                _GUICtrlEdit_AppendText($editProgress, $sText)
            EndIf
        WEnd
EndFunc

Func _Create_Child($hGUI_Main)
    $hGUI_Child = GUICreate("Follower", 600, 625, -1, -1, BitOR($WS_POPUP, $WS_BORDER), 0, $hGUI_Main)
    $editProgress = GUICtrlCreateEdit($sText, 1, 1, 598, 624, BitOR($WS_VSCROLL, $ES_READONLY, $ES_AUTOVSCROLL))
    GUISetFont(11, 400, Default, "Arial")
    _Position_Child($hGUI_Main, 0, 0, 0)
    GUISetState(@SW_HIDE, $hGUI_Child)
EndFunc

Func _Position_Child($hWnd, $iMsg, $wParam, $lParam)
    If $hWnd <> $hGUI_Main Then Return
    Local $aGUI_Main_Pos = WinGetPos($hGUI_Main)
    WinMove($hGUI_Child, "", $aGUI_Main_Pos[0] + $aGUI_Main_Pos[2] + 2, $aGUI_Main_Pos[1])
EndFunc

Func _SH_Child($hGUI_Main, $btnGo)
    If GUICtrlRead($btnGo) = "Execute" Then
        GUISetState(@SW_SHOW, $hGUI_Child)
        GUICtrlSetData($btnGo, "Back")
        WinActivate($hGUI_Main)
    Else
        GUISetState(@SW_HIDE, $hGUI_Child)
        GUICtrlSetData($btnGo, "Execute")
    EndIf
EndFunc

 

 


√-1 2^3 ∑ π, and it was delicious!

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So far using the CLR.au3 automation there is no descend way to get the data transfer in the console... The only workaround for the moment is to output to Clipboard... and read this back into AutoIT...

I have been reading half the internet and not found a structural solution...

https://www.howtogeek.com/163127/how-powershell-differs-from-the-windows-command-prompt/

Quote

...automate an interactive PowerShell script. In essence, it writes some data to the screen using the write-host cmdlet and then wait for keyboard input ....

I just tested the "ActiveXPoSH" COM object running a Parameter Function that has a mandatory Parameter input... and this COM Object support BI-Directional input.

The PowerShell script is paused untill the parameter is entered...

function Something
{
    Param
    (
         [Parameter(Mandatory=$true, Position=0)]
         [string] $Name
    )

    write-host "Output : $Name "

}

Something

Here is an Example in combination of ActiveXPoSH and  VMWare https://stujordan.wordpress.com/tag/powershell/

Hope this helps...

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Quote

"I have been reading half the internet and not found a structural solution..."

Then the answer must be in the other half :D so far I didn't find it either but also no statements found its not possible

https://www.google.nl/search?q=powershell+pipe+to+stdout
https://www.google.nl/search?q=powershell+kills+stdout

 

 

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There's a lot to read, but not really relevant .... ;)

All of the examples found and discussed are using C# code intermediate solutions... which we are not looking for. I am trying to find a AU3 native solution so we are not depending on anything else...

If not, I we could as well keep on using the "ActiveXPoSH" Com object... which can handle anything even parameter scripts as you can see ... 

 

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