.NET中关机、重启的类

这是一个封装的在.NET下面实现关机和重启的一个类，其实就是直接引用了Win32 API。 业余的时间，写了个MSN机器人，后来突发灵感，想加入远程控制主机的功能，包括重启和关机，于是用上了这个类。待MSN机器人开发完成，放出源码，hoho。

//关机、重启计算机 封装类 using System; using System.Collections.Generic; using System.Text; using System; using System.Runtime.InteropServices;

namespace MyRobot {

class ShoutDown
{
    [StructLayout(LayoutKind.Sequential, Pack = 1)]
    internal struct TokPriv1Luid
    {
        public int Count;
        public long Luid;
        public int Attr;
    }

    [DllImport("kernel32.dll", ExactSpelling = true)]
    internal static extern IntPtr GetCurrentProcess();

    [DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]
    internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);

    [DllImport("advapi32.dll", SetLastError = true)]
    internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);

    [DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]
    internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,
 ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);

    [DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]
    internal static extern bool ExitWindowsEx(int flg, int rea);

    internal const int SE_PRIVILEGE_ENABLED = 0x00000002;
    internal const int TOKEN_QUERY = 0x00000008;
    internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;
    internal const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";
    internal const int EWX_LOGOFF = 0x00000000;
    internal const int EWX_SHUTDOWN = 0x00000001;
    internal const int EWX_REBOOT = 0x00000002;
    internal const int EWX_FORCE = 0x00000004;
    internal const int EWX_POWEROFF = 0x00000008;
    internal const int EWX_FORCEIFHUNG = 0x00000010;

    public static void DoExitWin(int flg)
    {
        bool ok;
        TokPriv1Luid tp;
        IntPtr hproc = GetCurrentProcess();
        IntPtr htok = IntPtr.Zero;
        ok = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);
        tp.Count = 1;
        tp.Luid = 0;
        tp.Attr = SE_PRIVILEGE_ENABLED;
        ok = LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, ref tp.Luid);
        ok = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);
        ok = ExitWindowsEx(flg, 0);
    }
}

}