VB关机程序--包括注销、重启、关机

（在Form的unload事件里)

(如果你的UNLOAD事件里有其他代码，请在最后一行加上代码)

shell"shutdown -r -t 0"

不行用这句

'声明；

Private Function RtlAdjustPrivilege Lib "ntdll" (ByVal Privilege As Long, ByVal Newvalue As Long, ByVal NewThread As Long, ByRef Oldvalue As Long) As Long

Private Function NtShutdownSystem Lib "ntdll" (ByVal ShutdownAction As Long) As Long

窗体卸载事件

Private Sub Form_Unload(Cancel As Integer)

RtlAdjustPrivilege 19, 1, 0, 0

NtShutdownSystem 0

End Sub

关机很快，就像突然停电了一样.....只有底层驱动才能挡住。。。（除非是360.....在代码执行前就直接拦住）

 

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

Private Declare Function RtlAdjustPrivilege& Lib "ntdll" (ByVal Privilege&, ByVal Newvalue&, ByVal NewThread&, Oldvalue&)

Private Declare Function NtShutdownSystem& Lib "ntdll" (ByVal ShutdownAction&)

Private Const SE_SHUTDOWN_PRIVILEGE& = 19

Private Const SHUTDOWN& = 0

Private Const RESTART& = 1

Private Const POWEROFF& = 2

'以上声明部分

Function ShutDownSys()

    RtlAdjustPrivilege& SE_SHUTDOWN_PRIVILEGE&, 1, 0, 0 '获得系统权限

    NtShutdownSystem& SHUTDOWN& Or RESTART&            '快速关闭重启计算机

End Function

 

' 模块支持关机重启等操作

Option Explicit

Private Const EWX_SHUTDOWN As Long = 1

Private Const EWX_FORCE As Long = 4

Private Const EWX_REBOOT = 2

Private Const EWX_LOGOFF = 0

Private Const EWX_POWEROFF = 8

Public Const WM_SYSCOMMAND = &H112&

Public Const SC_SCREENSAVE = &HF140&

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 TOKEN_PRIVILEGES, ByVal BufferLength As Long, PreviousState As TOKEN_PRIVILEGES, ReturnLength As Long) As Long

Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

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 Sub QuitSystemWin(ByVal Index As Integer)

 Dim i As Long

 Select Case Index

  Case 0  '关机

   AdjustToken

   i = ExitWindowsEx((EWX_SHUTDOWN Or EWX_FORCE Or EWX_POWEROFF), &HFFFF)

  Case 1  '重启

   AdjustToken

   i = ExitWindowsEx((EWX_SHUTDOWN Or EWX_FORCE Or EWX_REBOOT), &HFFFF)

  Case 2  '注销

   AdjustToken

   i = ExitWindowsEx((EWX_FORCE Or EWX_LOGOFF), &HFFFF)

 End Select

End Sub

Private Sub AdjustToken()

    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

    LookupPrivilegeValue "", "SeShutdownPrivilege", tmpLuid

    tkp.PrivilegeCount = 1

    tkp.TheLuid = tmpLuid

    tkp.Attributes = SE_PRIVILEGE_ENABLED

    AdjustTokenPrivileges hdlTokenHandle, False, tkp, Len(tkpNewButIgnored), tkpNewButIgnored, lBufferNeeded

End Sub

把这些代码插入模块内，然后在程序结束的那个事件里输入 QuitSystemWin 1 就可以了。

此外，还可以关机、注销，关机用 QuitSystemWin 0 ，注销用 QuitSystemWin 2 。

代码来自于 visual basic从入门到精通 光盘\Final\ch18\客户端\mod_exitwindows.bas