P3 API- Aplication programing interface

Hi all! Nice forum you all have here. To put in layman's term, can P3 be controled by a self written software via any API?? I heard of primavera integration API here

http://www.scribd.com/doc/973502/API-WhitePaper#outer_page_5

and here

http://docs.oracle.com/cd/E16281_01/Technical_Documentation/Integration_API/ProgrammerReference.html

But the links never say if it can be applied specifically to P3.

Thanks in advance for your help.