User Impersonation in WindowsForms and WPF

Following example shows how to enforce interactive user in Windows Forms or WPF applications to become WindowsPrincipal, which can be read by Thread.CurrentPricipal:

  // This is identity of the user interactivelly logged on.
  WindowsIdentity currentIdentity = WindowsIdentity.GetCurrent();

  // This would be required if you would logon user by username and password.
  // This example shows how to impersonate some other user than the interactive one.
  // WindowsImpersonationContext ctx = currentIdent.Impersonate();

  
  // This two calls make the all magic.