accessing the accessor functions of another program

[Newlance]

I'm trying to write a widget that monitors the health/mana/stamina of a character in a game. I've discovered the game uses a varible!HEALTHCUR! to store current health. Is there a way i can access this?
Thanks
Newlance

Ps. I've just been told the game runs on"OPcodes" if that means anything.