Hcnetsdk.dll 9 Hikvision Error Link

Symptom: A VMS integrator reported error 9 when connecting to 200 Hikvision cameras. Some worked, some did not, even on the same network.

NET_DVR_USER_LOGIN_INFO loginInfo = new NET_DVR_USER_LOGIN_INFO(); loginInfo.dwSize = (uint)Marshal.SizeOf(loginInfo); // Prevents error 9 loginInfo.sDeviceAddress = ip; loginInfo.wPort = port; loginInfo.sUserName = user; loginInfo.sPassword = pwd; loginInfo.dwLoginMode = 0; // TCP mode hcnetsdk.dll 9 hikvision error

using System; using System.Runtime.InteropServices; public class HikvisionFix Symptom: A VMS integrator reported error 9 when

Set environment variables before running your application: some did not