Basit kodlama hakkında yardım

	
Add-Type -AssemblyName PresentationFramework 
 Add-Type @"
  using System;
  using System.Runtime.InteropServices;
  public class SFW {
     [DllImport("user32.dll")]
     [return: MarshalAs(UnmanagedType.Bool)]
     public static extern bool SetForegroundWindow(IntPtr hWnd);
  }
"@

[xml]$XAML  = @"
<Window
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	
	x:Name="Window"
	Title="Uygulama"
	Width="128" Height="96" ResizeMode="NoResize" Topmost="True">

	<Grid x:Name="LayoutRoot">
		<UniformGrid Columns="2" Rows="2">
					<Button x:Name="btn1" Content="8691"></Button>
				<Button x:Name="btn2" Content="8692"></Button>
					<Button x:Name="btn3" Content="8693"></Button>
						<Button x:Name="btn4" Content="8694"></Button>
		</UniformGrid>
	</Grid>
</Window>
"@

$reader=(New-Object System.Xml.XmlNodeReader  $xaml)

  $Window=[Windows.Markup.XamlReader]::Load(  $reader )  

  $btn1 = $window.FindName("btn1")
 
  $btn2 = $window.FindName("btn2")
  
  $btn3 = $window.FindName("btn3")
  
  $btn4 = $window.FindName("btn4")
  $process =(get-process calc)
  if ($process -eq $null)
  {
  [System.Windows.MessageBox]::Show('Uygulama Açık Değil')
  return
  }

  $handle=$process.MainWindowHandle


  $btn1.Add_Click({
 

[SFW]::SetForegroundWindow($handle)
[void] [System.Reflection.Assembly]::LoadWithPartialName("'System.Windows.Forms")
[System.Windows.Forms.SendKeys]::SendWait($btn1.Content)
[System.Windows.Forms.SendKeys]::SendWait({ENTER})    
})

  $btn2.Add_Click({

[SFW]::SetForegroundWindow($handle)
[void] [System.Reflection.Assembly]::LoadWithPartialName("'System.Windows.Forms")
[System.Windows.Forms.SendKeys]::SendWait($btn2.Content)
[System.Windows.Forms.SendKeys]::SendWait({ENTER})    
})

  $btn3.Add_Click({
 
[SFW]::SetForegroundWindow($handle)
[void] [System.Reflection.Assembly]::LoadWithPartialName("'System.Windows.Forms")
[System.Windows.Forms.SendKeys]::SendWait($btn3.Content)
[System.Windows.Forms.SendKeys]::SendWait({ENTER})    
})

  $btn4.Add_Click({
 
[SFW]::SetForegroundWindow($handle)
[void] [System.Reflection.Assembly]::LoadWithPartialName("'System.Windows.Forms")
[System.Windows.Forms.SendKeys]::SendWait($btn4.Content)
[System.Windows.Forms.SendKeys]::SendWait({ENTER})    
})
 $Window.ShowDialog()