IDA Help: object.retrieve

Retrieve a C structure from the idb or a buffer and convert it into an object
 typeinfo - description of the C structure. Can be specified
            as a declaration string or result of get_tinfo() or
            similar functions
 src      - address (ea) to retrieve the C structure from
            OR a string buffer previously packed with the store method
 flags    - combination of PIO_... bits

void object.retrieve(typeinfo, src, flags);