shutdown

are there functions to reboot, logoff, and shutdown a box in win 2k and xp

Look up ExitWindowsEx or InitiateSystemShutdown.

Snippet - Shutdown Windows

Snippet - Reboot Windows

This code correctly shutsdown the machine on NT/2k/XP, other code displays the "Your Computer is now safe to turn off" screen:D

VB Code:

'Used by ShutdownWindowsNT
Private Declare Function ExitWindowsEx Lib "User32" (ByVal uFlags 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 TOKEN_PRIVILEGES _
   , ByVal BufferLength As Long, _
PreviousState As TOKEN_PRIVILEGES, ReturnLength As Long) As Long
 
Private Const EWX_FORCE As Long = 4
Private Type LUID
   UsedPart As Long
   IgnoredForNowHigh32BitPart As Long
End Type
Private Type TOKEN_PRIVILEGES
  PrivilegeCount As Long
  TheLuid As LUID
  Attributes As Long
End Type
Public Enum EnumExitWindows
WE_LOGOFF = 0
WE_SHUTDOWN = 1
WE_REBOOT = 2
WE_POWEROFF = 8
End Enum
 
 
 
 
Public Function ShutdownWindowsNT(ShutdownType As Integer)
  
'1 = ATX power off
'2 = Shutdown
'3 = Restart
'4 = Logoff
 
 
'******* Adjust Priviliage for NT/Win2k/XP ********
  Const TOKEN_ADJUST_PRIVILEGES = &H20
  Const TOKEN_QUERY = &H8
  Const SE_PRIVILEGE_ENABLED = &H2
  Dim hdlProcessHandle As Long
  Dim hdlTokenHandle As Long
  Dim tmpLuid As LUID
  Dim tkp As TOKEN_PRIVILEGES
  Dim tkpNewButIgnored As TOKEN_PRIVILEGES
  Dim lBufferNeeded As Long
 
  hdlProcessHandle = GetCurrentProcess()
  OpenProcessToken hdlProcessHandle, (TOKEN_ADJUST_PRIVILEGES Or _
     TOKEN_QUERY), hdlTokenHandle
 
  ' Get the LUID for shutdown privilege.
  LookupPrivilegeValue "", "SeShutdownPrivilege", tmpLuid
 
  tkp.PrivilegeCount = 1    ' One privilege to set
  tkp.TheLuid = tmpLuid
  tkp.Attributes = SE_PRIVILEGE_ENABLED
 
  ' Enable the shutdown privilege in the access token of this process.
  AdjustTokenPrivileges hdlTokenHandle, False, _
     tkp, Len(tkpNewButIgnored), tkpNewButIgnored, lBufferNeeded
 
   
If ShutdownType = 1 Then ExitWindowsEx (WE_POWEROFF Or EWX_FORCE), 0
If ShutdownType = 2 Then ExitWindowsEx (WE_SHUTDOWN Or EWX_FORCE), 0
If ShutdownType = 3 Then ExitWindowsEx (WE_REBOOT Or EWX_FORCE), 0
If ShutdownType = 4 Then ExitWindowsEx (WE_LOGOFF Or EWX_FORCE), 0
 
  
End Function

Would the code work for win98se?

Quote:

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Originally posted by Spiv
This code correctly shutsdown the machine on NT/2k/XP, other code displays the "Your Computer is now safe to turn off" screen:D

VB Code:

'Used by ShutdownWindowsNT
Private Declare Function ExitWindowsEx Lib "User32" (ByVal uFlags 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 TOKEN_PRIVILEGES _
   , ByVal BufferLength As Long, _
PreviousState As TOKEN_PRIVILEGES, ReturnLength As Long) As Long
 
Private Const EWX_FORCE As Long = 4
Private Type LUID
   UsedPart As Long
   IgnoredForNowHigh32BitPart As Long
End Type
Private Type TOKEN_PRIVILEGES
  PrivilegeCount As Long
  TheLuid As LUID
  Attributes As Long
End Type
Public Enum EnumExitWindows
WE_LOGOFF = 0
WE_SHUTDOWN = 1
WE_REBOOT = 2
WE_POWEROFF = 8
End Enum
 
 
 
 
Public Function ShutdownWindowsNT(ShutdownType As Integer)
  
'1 = ATX power off
'2 = Shutdown
'3 = Restart
'4 = Logoff
 
 
'******* Adjust Priviliage for NT/Win2k/XP ********
  Const TOKEN_ADJUST_PRIVILEGES = &H20
  Const TOKEN_QUERY = &H8
  Const SE_PRIVILEGE_ENABLED = &H2
  Dim hdlProcessHandle As Long
  Dim hdlTokenHandle As Long
  Dim tmpLuid As LUID
  Dim tkp As TOKEN_PRIVILEGES
  Dim tkpNewButIgnored As TOKEN_PRIVILEGES
  Dim lBufferNeeded As Long
 
  hdlProcessHandle = GetCurrentProcess()
  OpenProcessToken hdlProcessHandle, (TOKEN_ADJUST_PRIVILEGES Or _
     TOKEN_QUERY), hdlTokenHandle
 
  ' Get the LUID for shutdown privilege.
  LookupPrivilegeValue "", "SeShutdownPrivilege", tmpLuid
 
  tkp.PrivilegeCount = 1    ' One privilege to set
  tkp.TheLuid = tmpLuid
  tkp.Attributes = SE_PRIVILEGE_ENABLED
 
  ' Enable the shutdown privilege in the access token of this process.
  AdjustTokenPrivileges hdlTokenHandle, False, _
     tkp, Len(tkpNewButIgnored), tkpNewButIgnored, lBufferNeeded
 
   
If ShutdownType = 1 Then ExitWindowsEx (WE_POWEROFF Or EWX_FORCE), 0
If ShutdownType = 2 Then ExitWindowsEx (WE_SHUTDOWN Or EWX_FORCE), 0
If ShutdownType = 3 Then ExitWindowsEx (WE_REBOOT Or EWX_FORCE), 0
If ShutdownType = 4 Then ExitWindowsEx (WE_LOGOFF Or EWX_FORCE), 0
 
  
End Function

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