title: what does "error : a nonstatic member reference must be relative to a specific object" mean?
body: <pre><code>int CPMSifDlg::EncodeAndSend(char *firstName, char *lastName, char *roomNumber, char *userId, char *userFirstName, char *userLastName)
  {
      ...
  
      return 1;
  }
  
  extern "C"
  {
      __declspec(dllexport) int start(char *firstName, char *lastName, char *roomNumber, char *userId, char *userFirstName, char *userLastName)
      {
          return CPMSifDlg::EncodeAndSend(firstName, lastName, roomNumber, userId, userFirstName, userLastName);
      }
  }
  </code></pre>
  
  <p>On line <code>return CPMSifDlg::EncodeAndSend</code> I have an error :
  Error : a nonstatic member reference must be relative to a specific object.</p>
  
  <p>What does it mean?</p>