Powershell Screen Recording Scripts

CleanupScreens.ps1

ls D:\Code\PSRec\Screenshots |% {
    $thisHash = identify -quiet -format "%#" $_.FullName
    
    if ($thisHash -eq $lastHash) {
        rm $_.FullName
        write-host "Removed duplicate $($_.FullName)"
    }
    $lastHash = $thisHash
}

$count = 0
ls D:\Code\PSRec\Screenshots |% {
    $count++
    write-host "Renaming $($_.FullName)"
    ren $_.FullName D:\Code\PSRec\Screenshots\Shot$($count.ToString("0000")).png
}

New-Screenshot.ps1

Param(
[Parameter(Position=0,Mandatory=$True,HelpMessage="Enter the path and filename")]
[ValidateNotNullorEmpty()]
[ValidateScript({
#verify the folder exists
$folder = Split-Path -Path $_

#Validation differs depending on whether v2 or v3
if ($PSVersionTable.psversion -eq "2.0") {
   Test-Path -Path $folder
}
else { 
    if (! (Test-Path -Path $folder)) {
        #write a custom error message for v3
        Throw "Can�t verify that $folder exists."
    }
    else {
        $True
    }
 } 
})]
[string]$Path,
[switch]$Full,
[switch]$Passthru
)

If ($host.Runspace.ApartmentState -ne "STA") {
    Write-Warning "You must run this in a PowerShell session with an apartment state of STA"
    Return
}

#load the necessary assemblies
Add-Type -AssemblyName "System.Drawing","System.Windows.Forms"

if ($Full) {
    #capture the full desktop
    [Windows.Forms.Sendkeys]::SendWait("{PrtSc}")  
}
else {
    #capture the current window
    [Windows.Forms.Sendkeys]::SendWait("%{PrtSc}")  
}

#pause enough to give time for the capture to take place
start-sleep -Milliseconds 250

#create bitmap object from the screenshot
$bitmap = [Windows.Forms.Clipboard]::GetImage()  

#split off the file extension and use it as the type
[string]$filename=Split-Path -Path $Path -Leaf
[string]$FileExtension= [system.io.path]::GetExtension($Filename)

#get the right format value based on the file extension
Switch ($FileExtension) {
    ".png"  {$FileType=[System.Drawing.Imaging.ImageFormat]::Png}
    ".bmp"  {$FileType=[System.Drawing.Imaging.ImageFormat]::Bmp}
    ".gif"  {$FileType=[System.Drawing.Imaging.ImageFormat]::Gif}
    ".emf"  {$FileType=[System.Drawing.Imaging.ImageFormat]::Emf}
    ".jpg"  {$FileType=[System.Drawing.Imaging.ImageFormat]::Jpeg}
    ".tiff" {$FileType=[System.Drawing.Imaging.ImageFormat]::Tiff}
    ".wmf"  {$FileType=[System.Drawing.Imaging.ImageFormat]::Wmf}
    ".exif" {$FileType=[System.Drawing.Imaging.ImageFormat]::Exif}

    Default {
      Write-Warning "Failed to find a valid graphic file type"
      $FileType=$False
      }
} #switch

#Save the file if a valid file type was determined
if ($FileType) {

 If ($PSCmdlet.ShouldProcess($path)) {
    Try {
        $bitmap.Save($Path.Trim(),$FileType)
        if ($Passthru) {
            #write the file object to the pipeline
            Get-Item -Path $Path.Trim()
        } #if $passthru
    } #try
    Catch {
        Write-Warning "Failed to save screen capture. $($_.Exception.Message)"
    } #catch
 } #if shouldprocess
} #if $filetype

#clear the clipboard
[Windows.Forms.Clipboard]::Clear()

StartRecording.ps1

$recTimer = new-object timers.timer 

mkdir D:\Code\PSRec\Screenshots | Out-Null
$global:seq = 0
$takeScreenshot = {
  try
  {
    $global:seq ++
    $file = "D:\Code\PSRec\Screenshots\Shot$($global:seq.ToString("0000")).png"
    D:\Code\PSRec\New-Screenshot.ps1 -Path $file
  }
  catch {
    write-host $_
  }
  
}

$recTimer.Interval = 500

Register-ObjectEvent -InputObject $recTimer -EventName elapsed –SourceIdentifier  recTimer -Action $takeScreenshot | Out-Null

$recTimer.Start() | Out-Null

StopRecording.ps1

$recTimer.stop()
Unregister-Event recTimer