Textbox which does two things
<p>I made textbox, but it needs to send data to other application, which have custom formatting (like <code>%B</code> is for bold, and if you want to turn off bold, you type keyword for normal font, and so).</p>

<p>So, formatting is much different than usual. I made textbox with buttons that can add keywords for text formatting, and that's working fine, but if I need preview in one label in same app, what is good way to do it? (I made preview button that sends text to label)</p>

<p>Obviously, I need to set that <code>%B</code> is starting bold text in label and so for other formatting keywords, unless there is better way?</p>
