Get-ShellBuffer.ps1

function Get-ShellBuffer
{
	[CmdletBinding()]
	param ()
	
	try
	{
		# Define limits
		$rec = New-Object System.Management.Automation.Host.Rectangle
		$rec.Left = 0
		$rec.Right = $host.ui.rawui.BufferSize.Width - 1
		$rec.Top = 0
		$rec.Bottom = $host.ui.rawui.BufferSize.Height - 1
		
		# Load buffer
		$buffer = $host.ui.rawui.GetBufferContents($rec)
		
		# Convert Buffer to list of strings
		$int = 0
		$lines = @()
		while ($int -le $rec.Bottom)
		{
			$n = 0
			$line = ""
			while ($n -le $rec.Right)
			{
				$line += $buffer[$int, $n].Character
				$n++
			}
			$line = $line.TrimEnd()
			$lines += $line
			$int++
		}
		
		# Measure empty lines at the beginning
		$int = 0
		$temp = $lines[$int]
		while ($temp -eq "") { $int++; $temp = $lines[$int] }
		
		# Measure empty lines at the end
		$z = $rec.Bottom
		$temp = $lines[$z]
		while ($temp -eq "") { $z--; $temp = $lines[$z] }
		
		# Skip the line launching this very function
		$z--
		
		# Measure empty lines at the end (continued)
		$temp = $lines[$z]
		while ($temp -eq "") { $z--; $temp = $lines[$z] }
		
		# Cut results to the limit and return them
		return $lines[$int .. $z]
	}
	catch { }
}