windows10下加載winsock2
WORD wVersionRequested;
WSADATA wsaData;
wVersionRequested = MAKEWORD(2, 2);
if (WSAStartup(wVersionRequested, &wsaData) != 0)
{
errorRe=INIT_ERROR_LOADSOCKET2;
return false;
}
創建有根控制平面和有根資料平面的組播
DWORD dwFlags = WSA_FLAG_OVERLAPPED;
dwFlags |= (WSA_FLAG_MULTIPOINT_C_ROOT|WSA_FLAG_MULTIPOINT_D_ROOT);
socketTem= WSASocket(AF_INET,SOCK_DGRAM,IPPROTO_UDP,lpw,0,dwFlags);
回傳的socketTem是INVALID_SOCKET
int er=WSAGetLastError();
er==10022
WSCEnumProtocols 查找IPPROTO_UDP的支持時
_WSAPROTOCOL_INFOW {
DWORD dwServiceFlags1
的dwServiceFlags1==132617
為什么創建 不了有根的組播？
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