R3ClassReplace
R3CLASS *R3ClassReplaceA(R3INT clid, R3INT newclid, R3OBJPROC op, int size, R3TAG *tags);
clid - class to be replaced
clid - class to be replaced
Address of the replaced class or NULL if class replacement failed.
Replaces given class 'clid' with new class 'newclid'. Replacement is possible if the following conditions are true: