9.8.20 GetInterface

OEInterface* GetInterface(std::string name,
                          std::string instance = std::string())
const OEInterface* GetInterface(std::string name,
                                std::string instance = std::string()) const

Returns a pointer to a child parameter with a given name and instance owned by any child OEInterface. The search is recursive searching through all childs child OEInterfaces, etc etc. If no such parameter exists NULL is returned.