SO_OPENTYPE top-level constant
int
const SO_OPENTYPE
Once set, affects whether subsequent sockets that are created will be non-overlapped. The possible values for this option are SO_SYNCHRONOUS_ALERT and SO_SYNCHRONOUS_NONALERT. This option should not be used. Instead use the WSASocket function and leave the WSA_FLAG_OVERLAPPED bit in the dwFlags parameter turned off
Implementation
const SO_OPENTYPE = 0x7008;