Type Definition winapi::um::mswsock::LPFN_WSARECVMSG

type LPFN_WSARECVMSG = Option<unsafe extern "system" fn(s: SOCKET, lpMsg: LPWSAMSG, lpdwNumberOfBytesRecvd: LPDWORD, lpOverlapped: LPWSAOVERLAPPED, lpCompletionRoutine: LPWSAOVERLAPPED_COMPLETION_ROUTINE) -> INT>;