Assign keyboard shortcuts to buttons in Powershell script - forms

Question

What I would like to do is to assign a button to a shortcut key, for example $TurnOnButton as key "Q", and $TurnOffButton as key "W" on my keyboard.
So basically, in my example below. When the script is running and the form is present, I would be able to push button "Q" on my keyboard to run calculator, and press button "W" to terminate it.
Is this possible with PowerShell?
Code example:
Add-Type -AssemblyName System.Windows.Forms
function Return-TurnOff
{
$x = Stop-Process -ProcessName calc
$x
}
function Return-TurnOn
{
$x = Start-Process calc
$x
}
$form = New-Object System.Windows.Forms.Form
$form.Text = "Title of the form"
$form.Size = New-Object System.Drawing.Size(300,200)
$form.minimumSize = New-Object System.Drawing.Size(300,200)
$form.maximumSize = New-Object System.Drawing.Size(300,200)
$form.StartPosition = "CenterScreen"
$TurnOffButton = New-Object System.Windows.Forms.Button
$TurnOffButton.Location = New-Object System.Drawing.Point(10,125)
$TurnOffButton.Size = New-Object System.Drawing.Size(55,25)
$TurnOffButton.Text = "Turn Off"
$TurnOffButton.Add_Click({Return-TurnOff})
$form.AcceptButton = $TurnOffButton
$form.Controls.Add($TurnOffButton)
$TurnOnButton = New-Object System.Windows.Forms.Button
$TurnOnButton.Location = New-Object System.Drawing.Point(10,65)
$TurnOnButton.Size = New-Object System.Drawing.Size(55,25)
$TurnOnButton.Text = "Turn On"
$TurnOnButton.Add_Click({Return-TurnOn})
$form.AcceptButton = $TurnOnButton
$form.Controls.Add($TurnOnButton)
$CancelButton = New-Object System.Windows.Forms.Button
$CancelButton.Location = New-Object System.Drawing.Point(215,125)
$CancelButton.Size = New-Object System.Drawing.Size(55,25)
$CancelButton.Text = "Cancel"
$CancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
$form.CancelButton = $CancelButton
$form.Controls.Add($CancelButton)
$label = New-Object System.Windows.Forms.Label
$label.Location = New-Object System.Drawing.Point(10,15)
$label.Size = New-Object System.Drawing.Size(280,20)
$label.Text = "Label for textbox:"
$form.Controls.Add($label)
$textBox = New-Object System.Windows.Forms.TextBox
$textBox.Location = New-Object System.Drawing.Point(10,35)
$textBox.Size = New-Object System.Drawing.Size(260,20)
$form.Controls.Add($textBox)
$form.Topmost = $True
$form.Add_Shown({$textBox.Select()})
$result = $form.ShowDialog()

Answer 1

If you don't mind having the label on the button contain the letter that corresponds to the button AND pressing the Alt key, then it's very easy, just put an '&' before the letter in the button text you want to be the accelerator:
$TurnOnButton.Text = "Turn O&n"
$TurnOffButton.Text = "Turn O&ff"
would make Alt-N perform Turn On and Alt-F perform Turn Off.
A more complicated solution is to register for keyboard presses, but it will let you handle any keystroke whether or not Alt is pressed. $form|gm -MemberType event key* will show you the events whose name starts with "Key". You can then google for how to handle events from Powershell with WinForms.