title: Why DIA SDK get_libraryName symbol returns NULL for IDiaSymbol?
body: <p>I need to find the correct .dll/.exe from where the function enumerated. For this I am using get_libraryName which to me should return file Name(.dll/.exe) in which the function was originally defined.</p>
  
  <p>But It returns every time NULL(BadPtr=0x00000)..
  Is there any way out to retrieve the exact file Name from where the function was being defined and used ?</p>
  
  <p>Regards
  Hassan</p>