整理出来的一个windows关机、锁定、重启、注销 API调用

using System.Runtime.InteropServices;


namespace HookDemo

{

class WindowsExit


{


[StructLayout(LayoutKind.Sequential, Pack = 1)]

private struct TokPriv1Luid


{

public int Count;

public long Luid;

public int Attr;


}


[DllImport("kernel32.dll", ExactSpelling = true)]

private static extern IntPtr GetCurrentProcess();



[DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]

private static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);



[DllImport("advapi32.dll", SetLastError = true)]

private static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);



[DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]

private static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,

ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);



[DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]

private static extern bool ExitWindowsEx(int DoFlag, int rea);


[DllImport("user32.dll")]

public static extern void LockWorkStation();


private const int SE_PRIVILEGE_ENABLED = 0x00000002;

private const int TOKEN_QUERY = 0x00000008;

private const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;

private const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";

private const int EWX_LOGOFF = 0x00000000;

private const int EWX_SHUTDOWN = 0x00000001;

private const int EWX_REBOOT = 0x00000002;

private const int EWX_FORCE = 0x00000004;

private const int EWX_POWEROFF = 0x00000008;

private const int EWX_FORCEIFHUNG = 0x00000010;


private static bool DoExitWin(int DoFlag)


{

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(DoFlag, 0);

return ok;


}


/// <summary>

/// 锁定计算机

/// </summary>

public static void Lock()


{


LockWorkStation();


}


/**/

/// <summary>

/// 重新启动

/// </summary>

public static bool Reboot()


{

return DoExitWin(EWX_FORCE | EWX_REBOOT);


}


/**/

/// <summary>

/// 关机

/// </summary>

public static bool PowerOff()


{

return DoExitWin(EWX_FORCE | EWX_POWEROFF);


}


/**/

/// <summary>

/// 注销

/// </summary>

public static bool LogOff()


{

return DoExitWin(EWX_FORCE | EWX_LOGOFF);


}


}

}

参考：http://www.wxzzz.com/?id=58