Use GetBestInterfaceEx when available.
Since GetBestInterface is not available in UWP apps.
GetBestInterface:
GetBestInterfaceEx:
@@ -576,7 +576,17 @@ ssdpDiscoverDevices(const char * const deviceTypes[],
* in order to give this ip to setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF) */
if(!ipv6) {
DWORD ifbestidx;
+#if _WIN32_WINNT >= 0x0600 // _WIN32_WINNT_VISTA
+ // While we don't need IPv6 support, the IPv4 only funciton is not available in UWP apps.
+ SOCKADDR_IN destAddr;
+ memset(&destAddr, 0, sizeof(destAddr));
+ destAddr.sin_family = AF_INET;
+ destAddr.sin_addr.s_addr = inet_addr("223.255.255.255");
+ destAddr.sin_port = 0;
+ if (GetBestInterfaceEx((struct sockaddr *)&destAddr, &ifbestidx) == NO_ERROR) {
+#else
if (GetBestInterface(inet_addr("223.255.255.255"), &ifbestidx) == NO_ERROR) {
+#endif
DWORD dwRetVal = NO_ERROR;
PIP_ADAPTER_ADDRESSES pAddresses = NULL;
ULONG outBufLen = 15360;
