https://docs.oracle.com/cd/E88353_01/html/E37846/mp-registerforobjectpropertychanges-3mpapi.html
MP_RegisterForObjectPropertyChanges - man pages section 3: Extended Library Functions, Volume 2
MP_RegisterForObjectPropertyChanges - register a client function to be called A pointer to an object ID that has type MP_OBJECT_PROPERTY_FN function defined by...
man pagesextended librarympsection