WMI を使用して C# でプロセスの所有者を取得するにはどうすればよいですか?

<code class="language-csharp">public string GetProcessOwner(int processId)
{
    string query = "Select * From Win32_Process Where ProcessID = " + processId;
    ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
    ManagementObjectCollection processList = searcher.Get();

    foreach (ManagementObject obj in processList)
    {
        string[] argList = new string[] { string.Empty, string.Empty };
        int returnVal = Convert.ToInt32(obj.InvokeMethod("GetOwner", argList));
        if (returnVal == 0)
        {
            // 返回 DOMAIN\user 格式
            return argList[1] + "\" + argList[0];
        }
    }

    return "NO OWNER";
}</code>

<code class="language-csharp">public string GetProcessOwner(string processName)
{
    string query = "Select * from Win32_Process Where Name = \"" + processName + "\"";
    ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
    ManagementObjectCollection processList = searcher.Get();

    foreach (ManagementObject obj in processList)
    {
        string[] argList = new string[] { string.Empty, string.Empty };
        int returnVal = Convert.ToInt32(obj.InvokeMethod("GetOwner", argList));
        if (returnVal == 0)
        {
            // 返回 DOMAIN\user 格式
            string owner = argList[1] + "\" + argList[0];
            return owner;
        }
    }

    return "NO OWNER";
}</code>