How about type conversions - are they correct (u_int32_t -> dword, unsigned -> cardinal, int -> integer)?
They are correct but note that there are aliases in the
system unit which were added, IIRC, precisely to ease this kind of conversions: Int8, UInt8, Int16, UInt16, Int32, UInt32, Int64, UInt64, an its corresponding pointers: PInt8, PUInt8, PInt16, etc.
They are described in the help for that unit (in the RTL help).