Handling Textbox Keydown Events

Welcome to another instalment of “how much can I confused myself today…”

Here, I will you how to recognise a keydown event on a textbox and also how to “identify” which key was pressed. This was useful to me because I wanted a button to be pressed when the user pressed the enter key whilst typing in a textbox. Similar to when you type a question into Google and press enter instead of pressing the search button.

First, I found what control I want the event to handle and added a raiseevent onto the button I wanted pressing. You can see this below:

$syncHash.Textbox.Add_KeyDown({
    if ($args[1].key -eq 'Enter'){
        $syncHash.Button.RaiseEvent((New-Object -TypeName System.Windows.RoutedEventArgs -ArgumentList $([System.Windows.Controls.Button]::ClickEvent)))
    }
})

So in this scenario, when the user wants to search they can just press enter in the textbox and the button will be pressed. You can also do this for the entire form. Meaning that if you have multiple textboxes and want an enter in any of them to press a button, you can just put the handler onto the entire form. You can see this below:

$syncHash.Window.Add_KeyDown({
    if ($args[1].key -eq 'Enter'){
        $syncHash.Button.RaiseEvent((New-Object -TypeName System.Windows.RoutedEventArgs -ArgumentList $([System.Windows.Controls.Button]::ClickEvent)))

    }
})

Enjoy!

Responsive PowerShell WPF Form Introduction #2

Following on from my last post, I’m going to show you how to update a textbox using a button on the same form. I will be adding the following code starting on line 38:

#BUTTON LOGIC
$syncHash.Button.Add_Click({

    $syncHash.Window.Dispatcher.Invoke(
        [action]{
            $syncHash.TextBox.AppendText("This is a test")
        }
    )
})

This is fairly basic in what it does. It just adds “This is a test” to the textbox. Say if I want the button to run a task and then update the textbox with the results, but the results took a long time to come, the form would freeze. This is because whatever command you run in the same runspace as the GUI, takes controls and stops the GUI being responsive.

So, what I’m going to do is ping google 5 times, get the average from all of those and then update the textbox without the GUI becoming unresponsive. To do this, I’m going to create a new runspace and add the code I want to run. You can see this below:

#BUTTON LOGIC
$syncHash.Button.Add_Click({
    #ASSIGNING HOST VARIABLE
    $syncHash.host = $Host
    #CREATING NEW RUNSPACE
    $pingrunspace = [runspacefactory]::CreateRunspace()
    $pingrunspace.ApartmentState = "STA"
    $pingrunspace.ThreadOptions = "ReuseThread"
    $pingrunspace.Open()
    #PUTTING THE SYNCHASH VARIABLE INSIDE THE NEW RUNSPACE
    $pingrunspace.SessionStateProxy.SetVariable("syncHash",$syncHash)

    #THIS IS THE CODE THAT WILL BE EXECUTED IN THE NEW RUNSPACE
    $code = {

        #CONNECTION TO GOOGLE AND CALCULATING AVERAGE IN NEW RUNSPACE
        $connection = Test-Connection -ComputerName google.co.uk -Count 5
        $average = [math]::Round(($connection.responsetime | Measure-Object -Average).Average)
        #UPDATING THE TEXTBOX WITH CONNECTION AVERAGE IN NEW RUNSPACE
        $syncHash.Window.Dispatcher.Invoke(
            [action]{
                $syncHash.TextBox.AppendText($average)
            }
        )

    }
        
    #ADDING AND RUNNING THE CODE IN THE NEW RUNSPACE
    $PSInstance = [powershell]::Create().AddScript($code)
    $PSinstance.Runspace = $pingrunspace
    $job = $PSinstance.BeginInvoke()
    
})

This will run the code in a separate runspace to the GUI and allow you to interact with it whilst the commands complete in the background.

Just in case you want the entire this, this is what the whole file looks like 🙂

#CREATE HASHTABLE AND RUNSPACE FOR GUI
$syncHash = [hashtable]::Synchronized(@{})
$newRunspace =[runspacefactory]::CreateRunspace()
$newRunspace.ApartmentState = "STA"
$newRunspace.ThreadOptions = "ReuseThread"         
$newRunspace.Open()
$newRunspace.SessionStateProxy.SetVariable("syncHash",$syncHash)      
#BUILD GUI AND ADD TO RUNSPACE CODE
$psCmd = [PowerShell]::Create().AddScript({   
    [xml]$xaml = @"
    <Window
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    Name="Window" Height="400" Width="600">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
        </Grid.ColumnDefinitions>

        <Button Name="Button" Content="Press" Height="200" Width="580" Grid.Row="0" Grid.Column="0" />
        <TextBox Name="Textbox" Height="200" Width="580" Grid.Row="1" Grid.Column="0" />
    </Grid>
</Window>
"@
  
    #INTERPRET AND LOAD THE GUI
    $reader=(New-Object System.Xml.XmlNodeReader $xaml)
    $syncHash.Window=[Windows.Markup.XamlReader]::Load( $reader )

    #EXTRACT THE CONTROLS FROM THE GUI
    $syncHash.TextBox = $syncHash.window.FindName("Textbox")
    $syncHash.Button = $syncHash.Window.FindName("Button")

    #BUTTON LOGIC
    $syncHash.Button.Add_Click({

        $syncHash.host = $Host
        $pingrunspace = [runspacefactory]::CreateRunspace()
        $pingrunspace.ApartmentState = "STA"
        $pingrunspace.ThreadOptions = "ReuseThread"
        $pingrunspace.Open()
        $pingrunspace.SessionStateProxy.SetVariable("syncHash",$syncHash)

        $code = {

            $connection = Test-Connection -ComputerName google.co.uk -Count 5
            $average = [math]::Round(($connection.responsetime | Measure-Object -Average).Average)
            $syncHash.Window.Dispatcher.Invoke(
                [action]{
                    $syncHash.TextBox.AppendText($average)
                }
            )

        }

        $PSInstance = [powershell]::Create().AddScript($code)
        $PSinstance.Runspace = $pingrunspace
        $job = $PSinstance.BeginInvoke()
    })


    #FINALISE AND CLOSE GUI RUNSPACE UPON EXITING
    $syncHash.Window.ShowDialog() | Out-Null
    $syncHash.Error = $Error
    $Runspace.Close()
    $Runspace.Dispose()
    
})
#LOAD RUNSPACE WITH GUI IN
$psCmd.Runspace = $newRunspace
$data = $psCmd.BeginInvoke()

Enjoy!

LAPS Winform

*UPDATE*

I have created the *final* iteration of this WPF form which can be found here

*UPDATE*

I didn’t like having to remote desktop into my domain controller and couldn’t figure out if there was a LAPS tool included in RSAT tools so I decided just to make my own and to add some extra features.

I wanted the GUI to look pretty much identity to the actual LAPS GUI. You can see the difference below:

You might be able to see that I  changed the “Set” button to say “Set and Update”. This was because I wanted the form to also attempt to update the group policy settings on the computer so that it would get a new password a lot quicker than the original GUI.

There’s not much else I can say, I will leave the entire script below for you to copy and paste. You will need to add the domain controller for your environment in the $domaincontroller variable at the top of the script. I have converted this to an EXE and run whenever I need it, never skips a beat. Let me know how you get on with it. Enjoy!

#ADDING FORM ASSEMBLY
Add-Type -AssemblyName system.windows.forms

#ENTER DOMAIN CONTROLLER BELOW
$domaincontroller = ""

#BASE 64 ICON
[string]$icon64 = "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"

#CONVERTING BASE 64 ICON TO SOMETHING USEFUL
$iconstream = [System.IO.MemoryStream][System.Convert]::FromBase64String($icon64)
$iconbmp = [System.Drawing.Bitmap][System.Drawing.Image]::FromStream($iconstream)
$iconhandle = $iconbmp.GetHicon()
$icon = [System.Drawing.Icon]::FromHandle($iconhandle)

#LAPS UI FORM
$lapsform = New-Object system.windows.forms.form    
$lapsform.Size = New-Object System.Drawing.Size(400,320)
$lapsform.Text = "                                     LAPS UI         "
$lapsform.StartPosition = "centerscreen"
$lapsform.FormBorderStyle = "fixed3d"
$lapsform.Icon = $icon

#LAPS TEXTBOX LABEL
$lapsform_computername_textbox_label = New-Object System.Windows.Forms.Label
$lapsform_computername_textbox_label.Location = New-Object System.Drawing.Point(20,20)
$lapsform_computername_textbox_label.Size = New-Object System.Drawing.Size(100,15)
$lapsform_computername_textbox_label.Text = "ComputerName"
$lapsform.Controls.Add($lapsform_computername_textbox_label)

#LAPS TEXTBOX
$lapsform_computername_textbox = New-Object System.Windows.Forms.TextBox
$lapsform_computername_textbox.Location = New-Object System.Drawing.Point(21,40)
$lapsform_computername_textbox.Size = New-Object System.Drawing.Size(250,15)
$lapsform.Controls.Add($lapsform_computername_textbox)

#VARIABLE FOR KEYDOWN
$lapsform_computername_textbox_keydown = {}

#KEYDOWN ASSIGNED
$lapsform_computername_textbox_keydown = [System.Windows.Forms.KeyEventHandler]{
    if ($_.keycode -eq 'Enter'){
        $lapsform_search_button.PerformClick()
    }
}

#REGISTER KEYDOWN HANDLER TO COMPUTER TEXTBOX
$lapsform_computername_textbox.add_keydown($lapsform_computername_textbox_keydown)

#LAPS SEARCH BUTTON
$lapsform_search_button = New-Object System.Windows.Forms.Button
$lapsform_search_button.Location = New-Object System.Drawing.Point(290,40)
$lapsform_search_button.Size = New-Object System.Drawing.Size(60,20)
$lapsform_search_button.Text = "Search"
$lapsform.Controls.Add($lapsform_search_button)

#LAPS SEARCH BUTTON LOGIC
$lapsform_search_button.add_click({
    if ($lapsform_computername_textbox.Text.Length -le 0){
        $lapsform_output_label.Text = "You must enter a computer name"
    }else{
        try{
            #getting text from textbox
            $computernametext = $lapsform_computername_textbox.Text

            #checking if computer is in AD
            $checkad = Get-ADComputer -Identity $computernametext
        
            #invoking admpwdpassword command on $domaincontroller
            $invokegetadmpwd = Invoke-Command -ComputerName $domaincontroller -ScriptBlock {get-admpwdpassword -ComputerName $args[0] } -ArgumentList $computernametext | Select-Object Password, expirationtimestamp
        
            #getting password and password expiration date
            $lapsform_password_textbox.Text = $invokegetadmpwd | Select-Object -ExpandProperty password
            $lapsform_password_expires_textbox.Text = $invokegetadmpwd | Select-Object -ExpandProperty expirationtimestamp

            $lapsform_output_label.text = ""
        }catch{

            if (!$checkad){
                $lapsform_output_label.Text = "Computer not found"
            }
            #clears password and expiry textbox
            $lapsform_password_textbox.Text = ""
            $lapsform_password_expires_textbox.Text = ""
        }
    }
})

#PASSWORD TEXTBOX LABEL
$lapsform_password_textbox_label = New-Object System.Windows.Forms.Label
$lapsform_password_textbox_label.Location = New-Object System.Drawing.Point(20, 90)
$lapsform_password_textbox_label.Size = New-Object System.Drawing.Size(100,20)
$lapsform_password_textbox_label.Text = "Password"
$lapsform.Controls.Add($lapsform_password_textbox_label)

#PASSWORD TEXTBOX
$lapsform_password_textbox = New-Object System.Windows.Forms.TextBox
$lapsform_password_textbox.Location = New-Object System.Drawing.Point(21,110)
$lapsform_password_textbox.Size = New-Object System.Drawing.Size(250,15)
$lapsform_password_textbox.ReadOnly = $true
$lapsform_password_textbox.Font = New-Object System.Drawing.Font("courier",12,[System.Drawing.FontStyle]::Regular)
$lapsform.Controls.Add($lapsform_password_textbox)

#PASSWORD EXPIRES TEXTBOX LABEL
$lapsform_password_expires_textbox_label = New-Object System.Windows.Forms.Label
$lapsform_password_expires_textbox_label.Location = New-Object System.Drawing.Point(20,145)
$lapsform_password_expires_textbox_label.Size = New-Object System.Drawing.Size(100,20)
$lapsform_password_expires_textbox_label.Text = "Password Expires"
$lapsform.Controls.Add($lapsform_password_expires_textbox_label)

#PASSWORD EXPIRES TEXTBOX
$lapsform_password_expires_textbox = New-Object System.Windows.Forms.TextBox
$lapsform_password_expires_textbox.Location = New-Object System.Drawing.Point(21,165)
$lapsform_password_expires_textbox.Size = New-Object System.Drawing.Size(250,15)
$lapsform_password_expires_textbox.ReadOnly = $true
$lapsform.Controls.Add($lapsform_password_expires_textbox)

#DATETIME PICKER LABEL
$lapsform_datetime_picker_label = New-Object System.Windows.Forms.Label
$lapsform_datetime_picker_label.Location = New-Object System.Drawing.Point(20,200)
$lapsform_datetime_picker_label.Size = New-Object System.Drawing.Size(150,20)
$lapsform_datetime_picker_label.Text = "New Expiration Time"
$lapsform.Controls.Add($lapsform_datetime_picker_label)

#DATETIME PICKER
$lapsform_datetime_picker = New-Object System.Windows.Forms.DateTimePicker
$lapsform_datetime_picker.Location = New-Object System.Drawing.Point(21,220)
$lapsform_datetime_picker.Size = New-Object System.Drawing.Size(250,15)
$lapsform_datetime_picker.Format = "custom"
$lapsform_datetime_picker.CustomFormat = "dd MMMM yyyy"
$lapsform.Controls.Add($lapsform_datetime_picker)

#DATETIME PICKER SET BUTTON
$lapsform_datetime_set_button = New-Object System.Windows.Forms.Button
$lapsform_datetime_set_button.Location = New-Object System.Drawing.Point(285,220)
$lapsform_datetime_set_button.Size = New-Object System.Drawing.Size(91,20)
$lapsform_datetime_set_button.Text = "Set and Update"
$lapsform.Controls.Add($lapsform_datetime_set_button)

$lapsform_datetime_set_button.add_click({

    if ($lapsform_computername_textbox.Text.Length -le 0){
        $lapsform_output_label.Text = "You must enter a computer name"
    }else{
        try{    
            $datetimepickervalue = $lapsform_datetime_picker.value.ToString("MM dd yyyy")
            #getting text from textbox
            $computernametext = $lapsform_computername_textbox.Text
    
            #checking if computer is in AD
            $checkad = Get-ADComputer -Identity $computernametext
            
            #invoking admpwdpassword command on $domaincontroller
            Invoke-Command -ComputerName $domaincontroller -ScriptBlock {reset-admpwdpassword -ComputerName $args[0] -wheneffective $args[1] } -ArgumentList $computernametext, $datetimepickervalue 

            #setting value of output label
            $lapsform_output_label.Text = "Password reset request was successful - GP updating - PLEASE WAIT"

            Invoke-GPUpdate -Computer $computernametext -ErrorAction SilentlyContinue

            $lapsform_output_label.Text = "Finished"
        }catch{
            #checking if computer is in AD
            if (!$checkad){
                $lapsform_output_label.Text = "Computer not found"
            }else{
                write-host "Another issue - WinRM probably isn't allowed..."
            }
    
        }

    }
})

#OUTPUT TEXTBOX
$lapsform_output_label = New-Object System.Windows.Forms.Label
$lapsform_output_label.Location = New-Object System.Drawing.Point(1,265)
$lapsform_output_label.Size = New-Object System.Drawing.Size(385,20)
$lapsform_output_label.BackColor = "white"
$lapsform_output_label.BorderStyle = "fixedsingle"
$lapsform.Controls.Add($lapsform_output_label)

#LAPS UI FORM DIALOG
[void]$lapsform.ShowDialog()

Unix Permissions Winform

In this post, I will show case a winform application that I have just finished building which will tell you the correct command when given the required permissions. For example, a read permission is identified as a 4 in Unix environments.

I have created a small table below:

 Permission Level  Permission Bit
 Read  4
 Write  2
 Execute  1

Since you need to define permissions for: the owner; owner group and others, you need to supply 3 permission bits per command. Plus one more for special permissions at the beginning but we can ignore that for now.

So if we wanted to give the below permissions:

Special – ignore

Owner – read (4), write(2) and execute(1)

Owner group – read(4) and write(2)

Other – read(4)

we would use the following command: chmod 0764 <path-to-file>

Now we can get on with the actual winform… I created this to tell me what permissions I needed to assigned. Below is a screenshot of the winform:

Front Winform

This also keeps a short history of the permissions in the history textbox which is flushed after so long to stop the textbox from overflowing. Here is a download for the project, in the zip folder is both a ps1 file and an exe file. Enjoy!

 

 

 

Creating a Dynamically Changing WinForm

This is a fairly simple thing, if you know what you’re doing or if you have done it before. But if, like me, you are at a complete lost and sick of searching only to find half complete or even completely contradictory answers, then this is the guide for you.

My goals for this GUI was to have the form resize IF a tick box was $true (ticked)

First I started off created a blank form with a single checkbox item, you can see this below:

$form = New-Object System.Windows.Forms.Form
$form.Text = "New User Form"
$form.Size = New-Object System.Drawing.Size(500,540)
$form.StartPosition = "CenterScreen"
$form.FormBorderStyle = "Fixed3D"
$form.MaximizeBox = $false
$form.MinimizeBox = $false

$OKButton = New-Object System.Windows.Forms.Button
$OKButton.Location = New-Object System.Drawing.Point(165,470)
$OKButton.Size = New-Object System.Drawing.Size(75,23)
$OKButton.Text = "OK"
$OKButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
$form.AcceptButton = $OKButton
$form.Controls.Add($OKButton)

$CancelButton = New-Object System.Windows.Forms.Button
$CancelButton.Location = New-Object System.Drawing.Point(245,470)
$CancelButton.Size = New-Object System.Drawing.Size(75,23)
$CancelButton.Text = "Cancel"
$CancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
$form.CancelButton = $CancelButton
$form.Controls.Add($CancelButton)

$checkbox = New-Object System.Windows.Forms.CheckBox
$checkbox.Location = New-Object System.Drawing.Point(100,100)
$checkbox.Size = New-Object System.Drawing.Size(100,25)
$checkbox.Text = "Test Checkbox"
$form.controls.Add($checkbox)

$result = $form.ShowDialog()

That will create an empty form like the one below:

Initial Form

Now I will add the following code after all the objects but before the end $result variable which displays the form:

$checkbox.add_checkstatechanged({

 if ($checkbox.Checked -eq $True){

  $form.size = new-object system.drawing.size(800,540)

 }else{

  $form.size = new-object system.drawing.size(500,540)

}

})

 

this is the part that will make the form larger if the checkbox is checked and return it to the original size if it isn’t checked. You can do SO many other things as well. For example, having a textbox enabled or disabled, changing the forms title, changing the colour of the form and to be honest just about anything you can think of.

This is the complete script you will need:

$form = New-Object System.Windows.Forms.Form
$form.Text = "New User Form"
$form.Size = New-Object System.Drawing.Size(500,540)
$form.StartPosition = "CenterScreen"
$form.FormBorderStyle = "Fixed3D"
$form.MaximizeBox = $false
$form.MinimizeBox = $false

$OKButton = New-Object System.Windows.Forms.Button
$OKButton.Location = New-Object System.Drawing.Point(165,470)
$OKButton.Size = New-Object System.Drawing.Size(75,23)
$OKButton.Text = "OK"
$OKButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
$form.AcceptButton = $OKButton
$form.Controls.Add($OKButton)
$CancelButton = New-Object System.Windows.Forms.Button
$CancelButton.Location = New-Object System.Drawing.Point(245,470)
$CancelButton.Size = New-Object System.Drawing.Size(75,23)
$CancelButton.Text = "Cancel"
$CancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
$form.CancelButton = $CancelButton
$form.Controls.Add($CancelButton)

$checkbox = New-Object System.Windows.Forms.CheckBox
$checkbox.Location = New-Object System.Drawing.Point(100,100)
$checkbox.Size = New-Object System.Drawing.Size(100,25)
$checkbox.Text = "Test Checkbox"
$form.controls.Add($checkbox)

$checkbox.add_checkstatechanged({
 if ($checkbox.Checked -eq $true){
  $form.Size = New-Object System.Drawing.Size(800,540)
 }else{
  $form.Size = New-Object System.Drawing.Size(500,540)
 }
})

$result = $form.ShowDialog()

This script will create a form like in the screenshots below. In this screenshot the checkbox is not ticked:

Initial Form

And in this screenshot the checkbox has been ticked, making the form size noticeably wider:

Ticked Form

Hope this helps someone struggling with getting started with some of the more complex WinForm tricks. Enjoy and comment if you need any help!