title: from console application to windows form GUI problem
body: <p>i wrote a console application in visual c++, and now i want to add a GUI to it using windows form. I am new to Windows form. and i have following questions </p>
  
  <ol>
  <li>I dont know how to include classes from other .h files in windows form. </li>
  <li>is library like <code>#include &lt;stdio.h&gt;</code>, <code>#include &lt;stdlib.h&gt;</code>, <code>#include &lt;iostream&gt;</code> in my original project still can be used in windows form project?</li>
  <li>is it better to convert my original project to .dll and use it in windows form? </li>
  </ol>