How can I do a screen capture in Windows PowerShell?
You can also use .NET to take the screenshot programatically (which gives you finer control):
[Reflection.Assembly]::LoadWithPartialName("System.Drawing")
function screenshot([Drawing.Rectangle]$bounds, $path) {
$bmp = New-Object Drawing.Bitmap $bounds.width, $bounds.height
$graphics = [Drawing.Graphics]::FromImage($bmp)
$graphics.CopyFromScreen($bounds.Location, [Drawing.Point]::Empty, $bounds.size)
$bmp.Save($path)
$graphics.Dispose()
$bmp.Dispose()
}
$bounds = [Drawing.Rectangle]::FromLTRB(0, 0, 1000, 900)
screenshot $bounds "C:\screenshot.png"
For the sake of completion, this script allows you to take screenshots across multiple monitors.
The base code comes from Jeremy.
[Reflection.Assembly]::LoadWithPartialName("System.Drawing")
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
function screenshot($path)
{
$width = 0;
$height = 0;
$workingAreaX = 0;
$workingAreaY = 0;
$screen = [System.Windows.Forms.Screen]::AllScreens;
foreach ($item in $screen)
{
if($workingAreaX -gt $item.WorkingArea.X)
{
$workingAreaX = $item.WorkingArea.X;
}
if($workingAreaY -gt $item.WorkingArea.Y)
{
$workingAreaY = $item.WorkingArea.Y;
}
$width = $width + $item.Bounds.Width;
if($item.Bounds.Height -gt $height)
{
$height = $item.Bounds.Height;
}
}
$bounds = [Drawing.Rectangle]::FromLTRB($workingAreaX, $workingAreaY, $width, $height);
$bmp = New-Object Drawing.Bitmap $width, $height;
$graphics = [Drawing.Graphics]::FromImage($bmp);
$graphics.CopyFromScreen($bounds.Location, [Drawing.Point]::Empty, $bounds.size);
$bmp.Save($path);
$graphics.Dispose();
$bmp.Dispose();
}
It can be called with: screenshot "D:\screenshot.png"