NET_DVR_DEVICEINFO_V30 struDeviceInfo;
char ip_address [] = "192.168.1.64";
WORD port = 8000;
char user_name [] = "admin";
char password [] = "12345abc";
printf("try to connect...\n");
/lUserID = NET_DVR_Login_V40(&struLoginInfo, &struDeviceInfoV40);
lUserID =...