H5P_COPY_PROP copies a property from one property list or class to another.
If a property is copied from one class to another, all the property information will be first deleted from the destination class and then the property information will be copied from the source class into the destination class.
If a property is copied from one list to another, the property will be first deleted from the destination list (generating a call to the
close callback for the property, if one exists) and then the property is copied from the source list to the destination list (generating a call to the
copy callback for the property, if one exists).
If the property does not exist in the class or list, this call is equivalent to calling H5P_REGISTER or H5P_INSERT (for a class or list, as appropriate) and the
create callback will be called in the case of the property being copied into a list (if such a callback exists for the property).