title: How can I know the function which represented by the Ordinals sign specified in the EntryPoint
body: <p>All, As the title shows , If I have the code looks like below.</p>
  
  <pre><code>[DllImport("twain_32.dll", EntryPoint="#1")]
  private static extern TwRC DSixfer( [In, Out] TwIdentity origin, [In] TwIdentity dest, TwDG dg, TwDAT dat, TwMSG msg, ref IntPtr hbitmap );
  </code></pre>
  
  <p>How can I know what exactly the function does that <code>#number</code> represent for? Is there any tool to view the list of function like below? </p>
  
  <pre><code>#1 Afunction(...)
  #2 Bfunction(...)
  #3 Afunction(...)
  ...
  #n Bfunction(...)
  </code></pre>
  
  <p>Thanks.</p>