vb6 的关机代码

Public Const SE_PRIVILEGE_ENABLED As Integer = &H2
Public Const TOKEN_QUERY As Integer = &H8
Public Const TOKEN_ADJUST_PRIVILEGES As Integer = &H20
Public Const SE_SHUTDOWN_NAME As String = "SeShutdownPrivilege"
Public Const EWX_LOGOFF As Integer = &H0 '注销计算机
Public Const EWX_SHUTDOWN As Integer = &H1 '关闭计算机
Public Const EWX_REBOOT As Integer = &H2 '重新启动计算机
Public Const EWX_FORCE As Integer = &H4 '关闭所有进程，注销计算机
Public Const EWX_POWEROFF As Integer = &H8
Public Const EWX_FORCEIFHUNG As Integer = &H10
Public Const SPI_GETWORKAREA = &H30

Private Type Luid
dwLowPart As Long
dwHighPart As Long
End Type

Private Type LUID_AND_ATTRIBUTES
udtLUID As Luid
dwAttributes As Long
End Type

Private Type TokPriv1Luid
    Count As Integer
    Luid As Luid
    Attr As Integer
End Type

Private Declare Function ExitWindowsEx Lib "user32" _
(ByVal dwOptions As Long, _
ByVal dwReserved As Long) As Long

Private Declare Function GetCurrentProcess Lib "kernel32" () As Long

Private Declare Function OpenProcessToken Lib "advapi32" _
(ByVal ProcessHandle As Long, _
ByVal DesiredAccess As Long, _
TokenHandle As Long) As Long

Private Declare Function LookupPrivilegeValue Lib "advapi32" _
Alias "LookupPrivilegeValueA" _
(ByVal lpSystemName As String, _
ByVal lpName As String, _
lpLuid As Luid) As Long

Private Declare Function AdjustTokenPrivileges Lib "advapi32" _
(ByVal TokenHandle As Long, _
ByVal DisableAllPrivileges As Long, _
NewState As TokPriv1Luid, _
ByVal BufferLength As Long, _
PreviousState As Any, _
ReturnLength As Long) As Long

Private Sub DoExitWin(ByVal flg As Integer)
    Dim xc As Boolean '判断语句
    Dim tp As TokPriv1Luid
    Dim hproc As Long
    hproc = GetCurrentProcess()

    '调用进程值
    Dim htok As Long
    htok = 0

    xc = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES Or TOKEN_QUERY, htok)
    tp.Count = 1
    tp.Attr = SE_PRIVILEGE_ENABLED

    xc = LookupPrivilegeValue(vbNullString, SE_SHUTDOWN_NAME, tp.Luid)
    xc = AdjustTokenPrivileges(htok, False, tp, ByVal 0&, ByVal 0&, ByVal 0&)
    xc = ExitWindowsEx(flg, 0)
End Sub

Public Sub Reboot()
    Dim flg As Integer
    flg = EWX_FORCE Or EWX_REBOOT
    DoExitWin flg '重新启动计算机
End Sub

Public Sub PowerOff()
    Dim flg As Integer
    flg = EWX_FORCE Or EWX_POWEROFF
    DoExitWin flg '关闭计算机
End Sub

Public Sub Logout()
    Dim flg As Boolean
    flg = EWX_FORCE Or EWX_LOGOFF
    DoExitWin flg '注销计算机
End Sub