Powershell klausimas

Sveiki, turiu toki skripta, kury paleidziu powershell pagalba. Jame nustatyta kad surenderintu transparent paveiksliuka, gal kas turi minti ka pakeisti kad renderintu paveiksliuka netransparent o kokios nors spalvos?

dabartinis gabaliukas kodo:

function RenderLogo([string]$a_strLogoPath, [int]$a_iXpos, [int]$a_iYpos) {

# renders image to current graphics object with upper left pixel as transparent color

if (!$a_strLogoPath) {

$system = Get-WmiObject -Class Win32_ComputerSystem -ComputerName .

[void][reflection.assembly]::LoadWithPartialName("System.IO")

$memoryStream = new-object System.IO.MemoryStream

$memoryStream.write($system.OEMLogoBitmap, 0, $system.OEMLogoBitmap.Length)

$bmpLogo = [system.Drawing.Image]::FromStream($memoryStream)

}

else {

$bmpLogo = [system.Drawing.Image]::FromFile($a_strLogoPath)

}

if (!$a_iYpos) {

$iYPos = $iY_START_POS - $iY_OFFSET - $bmpLogo.height

}

else {

$iYpos = $a_iYpos

}

$bmpLogo.MakeTransparent($bmpLogo.GetPixel(0, 0))

$Rectangle = New-Object Drawing.Rectangle $a_iXpos, $iYpos, $bmpLogo.Width, $bmpLogo.Height

$attr = new-object Drawing.Imaging.ImageAttributes

$attr.SetColorKey($bmpLogo.GetPixel(0, 0), $bmpLogo.GetPixel(0, 0))

$Graphics.DrawImage($bmpLogo, $Rectangle, 0, 0, $bmpLogo.Width, $bmpLogo.Height, [Drawing.GraphicsUnit]::Pixel, $attr)

} # RenderLogo()