ShutDownWindows – Shut down and reboot the operating system

Private Type LUID   LowPart As Long   HighPart As LongEnd TypePrivate Type TOKEN_PRIVILEGES    PrivilegeCount As Long    LuidUDT As LUID   Attributes As LongEnd TypeConst TOKEN_ADJUST_PRIVILEGES = &H20Const TOKEN_QUERY = &H8Const SE_PRIVILEGE_ENABLED = &H2Const EWX_SHUTDOWN = 1Const EWX_REBOOT = 2Const EWX_FORCE = 4Private Declare Function GetVersion Lib "kernel32" () As LongPrivate Declare Function GetCurrentProcess Lib "kernel32" () As LongPrivate Declare Function OpenProcessToken Lib "advapi32" (ByVal ProcessHandle _    As Long, ByVal DesiredAccess As Long, TokenHandle As Long) As LongPrivate Declare Function LookupPrivilegeValue Lib "advapi32" Alias _    "LookupPrivilegeValueA" (ByVal lpSystemName As String, _    ByVal lpName As String, lpLuid As LUID) As LongPrivate Declare Function AdjustTokenPrivileges Lib "advapi32" (ByVal _    TokenHandle As Long, ByVal DisableAllPrivileges As Long, _    NewState As TOKEN_PRIVILEGES, ByVal BufferLength As Long, _    PreviousState As Any, ReturnLength As Any) As LongPrivate Declare Function ExitWindowsEx Lib "user32" (ByVal dwOptions As Long, _    ByVal dwReserved As Long) As Long' Shut down windows, and optional reboot it' if the 2nd argument is True, no WM_QUERYENDSESSION and WM_ENDSESSION' messages are sent to active applicationsSub ShutDownWindows(ByVal Reboot As Boolean, Optional ByVal Force As Boolean)    Dim hToken As Long    Dim tp As TOKEN_PRIVILEGES    Dim flags As Long        ' Windows NT/2000 require a special treatment    ' to ensure that the calling process has the    ' privileges to shut down the system        ' under NT the high-order bit (that is, the sign bit)    ' of the value retured by GetVersion is cleared    If GetVersion() >= 0 Then        ' Open this process for adjusting its privileges        OpenProcessToken GetCurrentProcess(), (TOKEN_ADJUST_PRIVILEGES Or _            TOKEN_QUERY), hToken                ' Get the LUID for shutdown privilege.        ' retrieves the locally unique identifier (LUID) used        ' to locally represent the specified privilege name        ' (first argument = "" means the local system)        LookupPrivilegeValue "", "SeShutdownPrivilege", tp.LuidUDT                ' complete the TOKEN_PRIVILEGES structure with the # of        ' privileges and the desired attribute        tp.PrivilegeCount = 1        tp.Attributes = SE_PRIVILEGE_ENABLED                ' enables or disables privileges in the specified access token        ' last 3 arguments are zero because we aren't interested        ' in previous privilege attributes.        AdjustTokenPrivileges hToken, False, tp, 0, ByVal 0&, ByVal 0&    End If        ' prepare shutdown flags    flags = EWX_SHUTDOWN    If Reboot Then flags = flags Or EWX_REBOOT    If Force Then flags = flags Or EWX_FORCE        ' finally, you can shut down Windows    ExitWindowsEx flags, &HFFFF    End Sub

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