title: How to understand the call stack of Visual Studio?
body: <pre><code>  VCamD.ax!CFactoryTemplate::CreateInstance()  + 0x3f bytes 
  &gt; VCamD.ax!CClassFactory::CreateInstance()  + 0x7f bytes 
  </code></pre>
  
  <p>What's <code>0x7f</code> and <code>0x3f</code>?</p>