真正实现在windows2000下关机的源代码
Option Compare Database Option ExplicitPrivate Const EWX_LOGOFF = 0 Public Const EWX_SHUTDOWN = 1 Public Const EWX_POWEROFF = 8 '此参数在VB自带API浏览器并未提供,值得注意,如果没有此参数在Win2kServer会死在关机屏幕下 Private Const EWX_REBOOT = 2 Private Const EWX_FORCE = 4 Private Const TOKEN_ADJUST_PRIVILEGES = &H20; Private Const TOKEN_QUERY = &H8; Private Const SE_PRIVILEGE_ENABLED = &H2; Private Const ANYSIZE_ARRAY = 1 Private Const VER_PLATFORM_WIN32_NT = 2 Type OSVERSIONINFO dwOSVersionInfoSize As Long dwMajorVersion As Long dwMinorVersion As Long dwBuildNumber As Long dwPlatformId As Long szCSDVersion As String * 128 End Type Type LUID LowPart As Long HighPart As Long End Type Type LUID_AND_ATTRIBUTES pLuid As LUID Attributes As Long End Type 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 Public Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As Long, ByVal dwReserved As Long) As Long Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (ByRef lpVersionInformation As OSVERSIONINFO) As Long 'Detect if the program is running under Windows NT 检测是否为NT Public Function IsWinNT() As Boolean Dim myOS As OSVERSIONINFO myOS.dwOSVersionInfoSize = Len(myOS) GetVersionEx myOS IsWinNT = (myOS.dwPlatformId = VER_PLATFORM_WIN32_NT) End Function
'set the shut down privilege for the current application 为当前应用程序设置关机权限 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 赋予当前应用程序关机权限 AdjustTokenPrivileges hToken, False, mPriv, 4 + (12 * mPriv.PrivilegeCount), mNewPriv, 4 + (12 * mNewPriv.PrivilegeCount) End Sub
' Shut Down PC 关闭PC Public Sub ShutDownPC(Force As Boolean) Dim ret As Long Dim Flags As Long Flags = EWX_SHUTDOWN Or EWX_POWEROFF If Force Then Flags = Flags + EWX_FORCE If IsWinNT Then EnableShutDown ExitWindowsEx Flags, 0 End Sub
'Restart PC 重起PC Public Sub RebootPC(Force As Boolean) Dim ret As Long Dim Flags As Long Flags = EWX_REBOOT If Force Then Flags = Flags + EWX_FORCE If IsWinNT Then EnableShutDown ExitWindowsEx Flags, 0 End Sub
'Log off the current user 注消(登出)当前用户 Public Sub LogOff(Force As Boolean) Dim ret As Long Dim Flags As Long Flags = EWX_LOGOFF If Force Then Flags = Flags + EWX_FORCE ExitWindowsEx Flags, 0 End Sub
'自动开机说明:(以CMOS Setup Utility - Copyright (C) 1984-2001 Award Software 为例) '开机按Delete键进入CMOS Setup程序 '把选择移到Power Management Setup(电源管理设置), 按回车 '然后把选择移到Resume by Alarm,按PageDown键选择Enable '移到下一行把Date(of Month) Alarm 设为0 '移到下一行把Time(hh:mm:ss) Alarm 设为[自己的开机时间],例如:8:0:0(早上8点开机)
'由于各厂家CMOS设置程序不同,请参照主板配套说明书。
--------------------------------------------------------------------------------
相关文章
如何诊断/修复损坏的 Jet 4.0 数据库 2003-10-14 8:31:26
|