整理了幾個實用的對計算機管理的C#代碼，放在一個類中，方便使用
目前整理了如下方法：
public static void PowerOff()關機
public static void LogOff()註銷
public static void CloseMonitor(IntPtr handle)關閉顯示器
public static void OpenMonitor(IntPtr handle)打開顯示器
public class MyControl
{
[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 IntPtr SendMessage(IntPtr hWnd, uint msg, uint wParam, int lParam);
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 const uint WM_SYSCOMMAND = 0x0112 private const uint SC_MONITORPOWER = 0xF170 private static void 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);
} public static void Reboot()
{
DoExitWin(EWX_FORCE | EWX_REBOOT);
} public static void PowerOff()
{
DoExitWin(EWX_FORCE | EWX_POWEROFF);
} public static void LogOff()
{
DoExitWin(EWX_FORCE | EWX_LOGOFF);
} public static void CloseMonitor(IntPtr handle)
{
SendMessage(handle, WM_SYSCOMMAND, SC_MONITORPOWER, 2);
} public static void OpenMonitor(IntPtr handle)
{
SendMessage(handle, WM_SYSCOMMAND, SC_MONITORPOWER, -1);
}
}
本文轉自
http://blog.csdn.net/zfy0701/archive/2007/10/05/1811799.aspx