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PowerShell Tidbit: Capturing a ScreenShot with PowerShell

Keith Hill's Blog

This is a crude approach but works for capturing the main window of an application who’s process object you can find –typically via Get-Process.  If you run this script from PowerShell.exe or PowerShell_ISE.exe you will capture a screen shot of the host application’s main window which will get saved to your $home folder as screenshot.bmp.


$src = @'
using System;
using System.Runtime.InteropServices;

namespace PInvoke
{
public static class NativeMethods
{
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
}

[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int Left; // x position of upper-left corner
public int Top; // y position of upper-left corner
public int Right; // x position of lower-right corner
public int Bottom; // y position of lower-right corner
}
}
'
@


Add-Type -TypeDefinition $src
Add-Type -AssemblyName System.Drawing

# Get a process object from which we will get the main window bounds
$iseProc…

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