Toolkit Tutorial: Advanced Programming

  dt_Handle errors , error ;
  dt_Integer length ;
  dt_String string ;

  /* Error messages are contained in a sequence of string objects. */
  if ( NULL_OB != ( errors = dt_errors ( DX_ERR_NOTE ))) {
    while ( NULL_OB != ( error = dt_next ( errors ))) {
      string = dt_stringvalue ( & length , error );
      fprintf ( stderr , "%.*s\n" , length , string );
      dt_dealloc ( error );
    }
    dt_dealloc ( errors );
  }
  dt_errorclear ();