取得Window UserName

Windows Service取得Window UserName的方法

[DllImport("Wtsapi32.dll")]
private static extern bool WTSQuerySessionInformation(IntPtr hServer, int sessionId, WtsInfoClass wtsInfoClass, out IntPtr ppBuffer, out int pBytesReturned);
[DllImport("Wtsapi32.dll")]
private static extern void WTSFreeMemory(IntPtr pointer);
 
private enum WtsInfoClass
{
    WTSUserName = 5, 
    WTSDomainName = 7,
}
 
private static string GetUsername(int sessionId, bool prependDomain = true)
{
    IntPtr buffer;
    int strLen;
    string username = "SYSTEM";
    if (WTSQuerySessionInformation(IntPtr.Zero, sessionId, WtsInfoClass.WTSUserName, out buffer, out strLen) && strLen > 1)
    {
        username = Marshal.PtrToStringAnsi(buffer);
        WTSFreeMemory(buffer);
        if (prependDomain)
        {
            if (WTSQuerySessionInformation(IntPtr.Zero, sessionId, WtsInfoClass.WTSDomainName, out buffer, out strLen) && strLen > 1)
            {
                username = Marshal.PtrToStringAnsi(buffer) + "\\" + username;
                WTSFreeMemory(buffer);
            }
        }
    }
    return username;
}

UI部分可以透過WMI取得

using System;
namespace WindowsServiceTest
{
    class Program
    {
        static void Main(string[] args)
        {
            System.Management.SelectQuery sQuery = new System.Management.SelectQuery(string.Format("select name, startname from Win32_Service")); // where name = '{0}'", "MCShield.exe"));
            using (System.Management.ManagementObjectSearcher mgmtSearcher  = new System.Management.ManagementObjectSearcher(sQuery))
            {
                foreach (System.Management.ManagementObject service in mgmtSearcher.Get())
                {
                    string servicelogondetails =
                        string.Format("Name: {0} ,  Logon : {1} ", service["Name"].ToString(), service["startname"]).ToString();
                    Console.WriteLine(servicelogondetails);
                }
            }
            Console.ReadLine();
        }
    }
}

參考資料

C# - How To Get Logged In User's Username and Track Activities from Windows Service

How do I retrieve the username that a Windows service is running under?