SetDefaultPrinter using Pinvoke and Powershell

$code = @'
using System;
using System.Runtime.InteropServices;
namespace ChangeDefaultPrinter
{
    public class Program
    {
        [DllImport("Winspool.drv", CharSet=CharSet.Auto, SetLastError=true)]
        private static extern bool SetDefaultPrinter(string printerName);
        public static bool Run(string PrinterName)
        {
            bool default_result = SetDefaultPrinter(PrinterName);
			return default_result;
        }
    }
}
'@
cls
Add-Type -TypeDefinition $code -Language CSharp
#Set Default Printer - for network printers use \\PrintServer\PrintQueue
if(!([ChangeDefaultPrinter.Program]::Run("Canon iR-ADV C5045/5051 PCL5c")))
{
	throw (New-Object componentmodel.win32Exception )
}

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