hi,
is there any way to shutdown winnt at a specified time from vb code.
please
help
thanks
bye.
Printable View
hi,
is there any way to shutdown winnt at a specified time from vb code.
please
help
thanks
bye.
VB Code:
Option Explicit Private Const TOKEN_ADJUST_PRIVILEGES = &H20 Private Const TOKEN_QUERY = &H8 Private Const SE_PRIVILEGE_ENABLED = &H2 Private Const ANYSIZE_ARRAY = 1 Private Type LUID LowPart As Long HighPart As Long End Type Private Type LUID_AND_ATTRIBUTES pLuid As LUID Attributes As Long End Type Private Type TOKEN_PRIVILEGES PrivilegeCount As Long Privileges(ANYSIZE_ARRAY) As LUID_AND_ATTRIBUTES End Type 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 TOKEN_PRIVILEGES, ByVal BufferLength As Long, PreviousState As TOKEN_PRIVILEGES, ReturnLength As Long) As Long 'my stuff to shut down windows. needed to use NT's security Private Enum SHUTDOWNFLAG EWX_LOGOFF = 0 EWX_SHUTDOWN = 1 EWX_REBOOT = 2 EWX_FORCE = 4 EWX_POWEROFF = 8 End Enum Private Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As SHUTDOWNFLAG, ByVal dwReserved As Long) As Long Private Sub EnableShutDown() Dim hProc As Long Dim hToken As Long Dim mLUID As LUID Dim mPriv As TOKEN_PRIVILEGES Dim mNewPriv As TOKEN_PRIVILEGES hProc = GetCurrentProcess() OpenProcessToken hProc, TOKEN_ADJUST_PRIVILEGES + TOKEN_QUERY, hToken LookupPrivilegeValue "", "SeShutdownPrivilege", mLUID mPriv.PrivilegeCount = 1 mPriv.Privileges(0).Attributes = SE_PRIVILEGE_ENABLED mPriv.Privileges(0).pLuid = mLUID ' enable shutdown privilege for the current application AdjustTokenPrivileges hToken, False, mPriv, 4 + (12 * mPriv.PrivilegeCount), mNewPriv, 4 + (12 * mNewPriv.PrivilegeCount) End Sub Private Sub cmdLogoff_Click() Dim retval As Long retval = ExitWindowsEx(EWX_LOGOFF, 0) Unload Me End Sub Private Sub cmdPoweroff_Click() Dim retval As Long retval = ExitWindowsEx(EWX_POWEROFF, 0) Unload Me End Sub Private Sub cmdReboot_Click() Dim retval As Long retval = ExitWindowsEx(EWX_REBOOT, 0) Unload Me End Sub Private Sub cmdShutdown_Click() Dim retval As Long retval = ExitWindowsEx(EWX_SHUTDOWN, 0) Unload Me End Sub Private Sub Form_Load() EnableShutDown End Sub