title: How can I use NLog's RichTextBox Target in WPF application?
body: <p>How can I use RichTextBox Target in WPF application?
  I don't want to have a separate window with log, I want all log messages to be outputted in richTextBox located in WPF dialog.</p>
  
  <p>I've tried to use WindowsFormsHost with RichTextBox box inside but that does not worked for me: NLog opened separate Windows Form anyway.</p>