Перезагрузка/выключение Windows
Как показывает практика, вопрос выключения и перезагрузки Windows программно интересует очень многих. Я бы тоже хотел внести свою лепту в ответ на этот вопрос. Уже долгое время я пользуюсь этим примером. Что примечательно: при использовании данного примера, система поочередно опрашивает все процессы в системе, и если требуется в какой-либо программе сохранения каких-либо данных, то вы всегда можете сделать отмену процесса выключения компьютера. При использовании данного примера вы можете использовать одну из EWX_-констант.
- EWX_LOGOFF - вход в систему под новым именем
- EWX_SHUTDOWN - выключение компьютера
- EWX_REBOOT - перезагрузка компьютера
- EWX_FORCE - принудительный вход под новым именем
Создайте форму и разместите там две кнопки - CompOff и CompReboot:
' Завершает работу Windows
Private Sub CompOff_Click()
Call ShutDown(EWX_SHUTDOWN)
End Sub
' Перезагружает Windows
Private Sub CompReboot_Click()
Call ShutDown(EWX_REBOOT)
End Sub
Private Sub CompOff_Click()
Call ShutDown(EWX_SHUTDOWN)
End Sub
' Перезагружает Windows
Private Sub CompReboot_Click()
Call ShutDown(EWX_REBOOT)
End Sub
Теперь создайте новый модуль и разместите там следующий код:
Private Const
STANDARD_RIGHTS_REQUIRED = &HF0000
Private Const READ_CONTROL = &H20000
Private Const STANDARD_RIGHTS_READ = (READ_CONTROL)
Private Const STANDARD_RIGHTS_WRITE = (READ_CONTROL)
Private Const STANDARD_RIGHTS_EXECUTE = (READ_CONTROL)
Public Enum TokenRights
TOKEN_ASSIGN_PRIMARY = &H1
TOKEN_DUPLICATE = &H2
TOKEN_IMPERSONATE = &H4
TOKEN_QUERY = &H8
TOKEN_QUERY_SOURCE = &H10
TOKEN_ADJUST_PRIVILEGES = &H20
TOKEN_ADJUST_GROUPS = &H40
TOKEN_ADJUST_DEFAULT = &H80
TOKEN_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED Or TOKEN_ASSIGN_PRIMARY Or TOKEN_DUPLICATE Or TOKEN_IMPERSONATE Or TOKEN_QUERY Or TOKEN_QUERY_SOURCE Or TOKEN_ADJUST_PRIVILEGES Or TOKEN_ADJUST_GROUPS Or TOKEN_ADJUST_DEFAULT)
TOKEN_READ = (STANDARD_RIGHTS_READ Or TOKEN_QUERY)
TOKEN_WRITE = (STANDARD_RIGHTS_WRITE Or TOKEN_ADJUST_PRIVILEGES Or TOKEN_ADJUST_GROUPS Or TOKEN_ADJUST_DEFAULT)
TOKEN_EXECUTE = (STANDARD_RIGHTS_EXECUTE)
End Enum
Public Enum PrivilegeAttributes
SE_PRIVILEGE_ENABLED_BY_DEFAULT = &H1
SE_PRIVILEGE_ENABLED = &H2
SE_PRIVILEGE_USED_FOR_ACCESS = &H80000000
End Enum
Public Enum ExitOptions
EWX_LOGOFF = 0
EWX_SHUTDOWN = 1
EWX_REBOOT = 2
EWX_FORCE = 4
End Enum
Public Enum TokenAccess
TokenUser = 1
TokenGroups = 2
TokenPrivileges = 3
TokenOwner = 4
TokenPrimaryGroup = 5
TokenDefaultDacl = 6
TokenType = 8
TokenImpersonationLevel = 9
TokenStatistics = 10
End Enum
Type LUID
lowPart As Long
HighPart As Long
End Type
Type LUID_AND_ATTRIBUTES
pLuid As LUID
Attributes As PrivilegeAttributes
End Type
Type PTOKEN_PRIVILEGES
PrivilegeCount As Long
Privileges(0) 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 TokenRights, ByRef TokenHandle As Long) As Long
Private Declare Function LookupPrivilegeValueA Lib "advapi32" (ByVal lpSystemName As String, ByVal lpName As String, ByRef lpLuid As LUID) As Long
Private Declare Function AdjustTokenPrivileges Lib "advapi32" (ByVal TokenHandle As Long, ByVal DisableAllPrivileges As Long, ByRef NewState As PTOKEN_PRIVILEGES, ByVal BufferLength As Long, ByRef PreviousState As Long, ByRef ReturnLenght As Long) As Long
Private Declare Function AdjustTokenPrivilegesOld Lib "advapi32" Alias "AdjustTokenPrivileges" (ByVal TokenHandle As Long, ByVal DisableAllPrivileges As Long, ByRef NewState As PTOKEN_PRIVILEGES, ByVal BufferLength As Long, ByRef PreviousState As PTOKEN_PRIVILEGES, ByRef ReturnLenght As Long) As Long
Private Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As ExitOptions, ByVal dwReserved As Long) As Long
Public Function ShutDown(Operation As ExitOptions) As Long
Dim lngProcess As Long
Dim lngReturn As Long
Dim lngToken As Long
Dim udtLUID As LUID
Dim lngTokenPrivileges As TokenRights
Dim udtTokenPrivNew As PTOKEN_PRIVILEGES
lngProcess = GetCurrentProcess()
lngTokenPrivileges = TOKEN_ADJUST_PRIVILEGES
lngReturn = OpenProcessToken(lngProcess, lngTokenPrivileges, lngToken)
lngReturn = LookupPrivilegeValueA(vbNullString, "SE_SHUTDOWN_NAME", udtLUID)
udtTokenPrivNew.PrivilegeCount = 1
udtTokenPrivNew.Privileges(0).Attributes = SE_PRIVILEGE_ENABLED
udtTokenPrivNew.Privileges(0).pLuid = udtLUID
lngReturn = AdjustTokenPrivileges(lngToken, 0, udtTokenPrivNew, 0&, 0, 0&)
ShutDown = ExitWindowsEx(Operation, 0)
End Function
Private Const READ_CONTROL = &H20000
Private Const STANDARD_RIGHTS_READ = (READ_CONTROL)
Private Const STANDARD_RIGHTS_WRITE = (READ_CONTROL)
Private Const STANDARD_RIGHTS_EXECUTE = (READ_CONTROL)
Public Enum TokenRights
TOKEN_ASSIGN_PRIMARY = &H1
TOKEN_DUPLICATE = &H2
TOKEN_IMPERSONATE = &H4
TOKEN_QUERY = &H8
TOKEN_QUERY_SOURCE = &H10
TOKEN_ADJUST_PRIVILEGES = &H20
TOKEN_ADJUST_GROUPS = &H40
TOKEN_ADJUST_DEFAULT = &H80
TOKEN_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED Or TOKEN_ASSIGN_PRIMARY Or TOKEN_DUPLICATE Or TOKEN_IMPERSONATE Or TOKEN_QUERY Or TOKEN_QUERY_SOURCE Or TOKEN_ADJUST_PRIVILEGES Or TOKEN_ADJUST_GROUPS Or TOKEN_ADJUST_DEFAULT)
TOKEN_READ = (STANDARD_RIGHTS_READ Or TOKEN_QUERY)
TOKEN_WRITE = (STANDARD_RIGHTS_WRITE Or TOKEN_ADJUST_PRIVILEGES Or TOKEN_ADJUST_GROUPS Or TOKEN_ADJUST_DEFAULT)
TOKEN_EXECUTE = (STANDARD_RIGHTS_EXECUTE)
End Enum
Public Enum PrivilegeAttributes
SE_PRIVILEGE_ENABLED_BY_DEFAULT = &H1
SE_PRIVILEGE_ENABLED = &H2
SE_PRIVILEGE_USED_FOR_ACCESS = &H80000000
End Enum
Public Enum ExitOptions
EWX_LOGOFF = 0
EWX_SHUTDOWN = 1
EWX_REBOOT = 2
EWX_FORCE = 4
End Enum
Public Enum TokenAccess
TokenUser = 1
TokenGroups = 2
TokenPrivileges = 3
TokenOwner = 4
TokenPrimaryGroup = 5
TokenDefaultDacl = 6
TokenType = 8
TokenImpersonationLevel = 9
TokenStatistics = 10
End Enum
Type LUID
lowPart As Long
HighPart As Long
End Type
Type LUID_AND_ATTRIBUTES
pLuid As LUID
Attributes As PrivilegeAttributes
End Type
Type PTOKEN_PRIVILEGES
PrivilegeCount As Long
Privileges(0) 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 TokenRights, ByRef TokenHandle As Long) As Long
Private Declare Function LookupPrivilegeValueA Lib "advapi32" (ByVal lpSystemName As String, ByVal lpName As String, ByRef lpLuid As LUID) As Long
Private Declare Function AdjustTokenPrivileges Lib "advapi32" (ByVal TokenHandle As Long, ByVal DisableAllPrivileges As Long, ByRef NewState As PTOKEN_PRIVILEGES, ByVal BufferLength As Long, ByRef PreviousState As Long, ByRef ReturnLenght As Long) As Long
Private Declare Function AdjustTokenPrivilegesOld Lib "advapi32" Alias "AdjustTokenPrivileges" (ByVal TokenHandle As Long, ByVal DisableAllPrivileges As Long, ByRef NewState As PTOKEN_PRIVILEGES, ByVal BufferLength As Long, ByRef PreviousState As PTOKEN_PRIVILEGES, ByRef ReturnLenght As Long) As Long
Private Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As ExitOptions, ByVal dwReserved As Long) As Long
Public Function ShutDown(Operation As ExitOptions) As Long
Dim lngProcess As Long
Dim lngReturn As Long
Dim lngToken As Long
Dim udtLUID As LUID
Dim lngTokenPrivileges As TokenRights
Dim udtTokenPrivNew As PTOKEN_PRIVILEGES
lngProcess = GetCurrentProcess()
lngTokenPrivileges = TOKEN_ADJUST_PRIVILEGES
lngReturn = OpenProcessToken(lngProcess, lngTokenPrivileges, lngToken)
lngReturn = LookupPrivilegeValueA(vbNullString, "SE_SHUTDOWN_NAME", udtLUID)
udtTokenPrivNew.PrivilegeCount = 1
udtTokenPrivNew.Privileges(0).Attributes = SE_PRIVILEGE_ENABLED
udtTokenPrivNew.Privileges(0).pLuid = udtLUID
lngReturn = AdjustTokenPrivileges(lngToken, 0, udtTokenPrivNew, 0&, 0, 0&)
ShutDown = ExitWindowsEx(Operation, 0)
End Function
Источник: www.vbnet.ru.