close_all_measures — This operator is inoperable. It had the following function:
Delete all measure objects.
close_all_measures is obsolete, inoperable, and is only provided for
reasons of backward compatibility. New applications should not use
close_all_measures, the operator will be removed in future
close_all_measures( : : : )
close_all_measures exists solely for the purpose of
implementing the “reset program” functionality in HDevelop.
close_all_measures must not be used in any
close_all_measures always returns 2 (H_MSG_TRUE).