Windows process managment through C#

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#region Process Manipulation

    [Flags]
    public enum ThreadAccess : int
    {
        TERMINATE = (0x0001),
        SUSPEND_RESUME = (0x0002),
        GET_CONTEXT = (0x0008),
        SET_CONTEXT = (0x0010),
        SET_INFORMATION = (0x0020),
        QUERY_INFORMATION = (0x0040),
        SET_THREAD_TOKEN = (0x0080),
        IMPERSONATE = (0x0100),
        DIRECT_IMPERSONATION = (0x0200)
    }

    [DllImport("kernel32.dll")]
    static extern IntPtr OpenThread(ThreadAccess dwDesiredAccess, bool bInheritHandle, uint dwThreadId);
    [DllImport("kernel32.dll")]
    static extern uint SuspendThread(IntPtr hThread);
    [DllImport("kernel32.dll")]
    static extern int ResumeThread(IntPtr hThread);
    [DllImport("kernel32", CharSet = CharSet.Auto, SetLastError = true)]
    static extern bool CloseHandle(IntPtr handle);


    private static void SuspendProcess(int pid)
    {
        var process = Process.GetProcessById(pid);

        if (process.ProcessName == string.Empty)
            return;

        foreach (ProcessThread pT in process.Threads)
        {
            IntPtr pOpenThread = OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)pT.Id);

            if (pOpenThread == IntPtr.Zero)
            {
                continue;
            }

            SuspendThread(pOpenThread);

            CloseHandle(pOpenThread);
        }
    }

    public static void ResumeProcess(int pid)
    {
        var process = Process.GetProcessById(pid);

        if (process.ProcessName == string.Empty)
            return;

        foreach (ProcessThread pT in process.Threads)
        {
            IntPtr pOpenThread = OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)pT.Id);

            if (pOpenThread == IntPtr.Zero)
            {
                continue;
            }

            var suspendCount = 0;
            do
            {
                suspendCount = ResumeThread(pOpenThread);
            } while (suspendCount > 0);

            CloseHandle(pOpenThread);
        }
    }

    #endregion

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