????????LOBYTE?LOWORD?HIBYTE?HIWORD?

adjacency

DWORD dwReverseIP = 0;
DWORD dwIP;
dwReverseIP = (LOBYTE(LOWORD(dwIP)) << 24) | (HIBYTE(LOWORD(dwIP)) << 16) | (LOBYTE(HIWORD(dwIP)) << 8) | (HIBYTE(HIWORD(dwIP)));

(LOBYTE(LOWORD(dwIP)) << 24)
??dwIP??16???(?8*16???bit??)
?????8*16????????????????(8??bit??)
?8??????24???
??24?!????0??

??????.
????.