/// <summary>
        /// Gets the parent process of a specified process.
        /// </summary>
        public static Process GetParentProcess(IntPtr handle)
        {
            var pbi    = new ParentProcessFinder();
            int status = NtQueryInformationProcess(handle, 0, ref pbi, Marshal.SizeOf(pbi), out int returnLength);

            if (status != 0)
            {
                throw new Win32Exception(status);
            }
            try
            {
                return(Process.GetProcessById(pbi.InheritedFromUniqueProcessId.ToInt32()));
            }
            catch
            {
                return(null);
            }
        }
 private static extern int NtQueryInformationProcess(IntPtr processHandle, int processInformationClass, ref ParentProcessFinder processInformation, int processInformationLength, out int returnLength);