get_display_name
  
  Description:
  public unowned string get_display_name ()
  
 
  
    Gets a display name for a file.
     This is guaranteed to always be set.
    It is an error to call this if the FileInfo does not contain 
      g_file_attribute_standard_display_name.
    Parameters:
    
    Returns:
    
      
        | 
           a string containing the display name. 
         |