C# shutdown/hibernate/sleep

Question

Is it possible to shutdown/hibernate/restart/sleep a computer using a C# program?

Answer 1

to shutdown/reboot system use -

using System.Management;

    void Shutdown()
    {
        ManagementBaseObject mboShutdown = null;
        ManagementClass mcWin32 = new ManagementClass("Win32_OperatingSystem");
        mcWin32.Get();

        // You can't shutdown without security privileges
        mcWin32.Scope.Options.EnablePrivileges = true;
        ManagementBaseObject mboShutdownParams =
                 mcWin32.GetMethodParameters("Win32Shutdown");

        // **Flag 1 means we want to shut down the system. Use "2" to reboot**.
        mboShutdownParams["Flags"] = "1";
        mboShutdownParams["Reserved"] = "0";
        foreach (ManagementObject manObj in mcWin32.GetInstances())
        {
            mboShutdown = manObj.InvokeMethod("Win32Shutdown", 
                                           mboShutdownParams, null);
        }
    }

more here

For hibernate and stand by - If you are using .NET 2.0 you can just call Application.SetSuspendState.

Check out the documentation at: