title: No functions in C# DLL with RGiesecke.DllExport
body: <p>I am trying to make a DLL in C# for use in a couple other languages.  I found RGiesecke's DllExport but it doesn't seem to work.  It builds just fine and makes a dll, but when I open it in Dependency Walker it doesn't show any functions, and my calling code can't find them either.  </p>
  
  <p>I created a new "Class Library" project (VS 2013) and then installed "Unmanaged Exports (DllExport for .Net)" from NuGet.  Are there any project settings I need?  </p>
  
  <p>Here is my code. </p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Text;
  using RGiesecke.DllExport;
  
  namespace ToolServiceDLL
  {
      public class Class1
      {
        [DllExport("addUp", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
        public static double addUp(double num1, double num2)
        {
          return num1 + num2;
        }
  
        [DllExport("get5", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
        public static int get5()
        {
          return 5;
        }
      }
  }
  </code></pre>