[VB.NET]帮忙看看这些代码!!!
发布时间：2020-12-16 23:39:27 所属栏目：大数据 来源：网络整理
导读：帮忙看看这些代码!!! 我想有vb.net代码关机，不过下面的代码只是‘注销’才行，‘关机’和‘重启’都不行！！ 这些代码是小弟求来的，现在用不了还相求各位大哥帮帮小弟解决！！ Private Declare Function ExitWindowsEx Lib user32 (ByVal uFlags As Intege
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帮忙看看这些代码!!! 我想有vb.net代码关机，不过下面的代码只是‘注销’才行，‘关机’和‘重启’都不行！！ 这些代码是小弟求来的，现在用不了还相求各位大哥帮帮小弟解决！！ Private Declare Function ExitWindowsEx Lib user32 (ByVal uFlags As Integer,ByVal dwReserved As Integer) As Integer Const EWX_FORCE As Integer = 4 Const EWX_LOGOFF As Integer = 0 Const EWX_REBOOT As Integer = 2 Const EWX_SHUTDOWN As Integer = 1 注销当前用户 Public Sub LogOutUsers() ExitWindowsEx(EWX_FORCE,0) End Sub 关闭机算机 Public Sub CloseComputer() ExitWindowsEx(EWX_SHUTDOWN,0) End Sub 重新启动 Public Sub ResetComputer() ExitWindowsEx(EWX_REBOOT,0) End Sub __________________________________________________________________________ Microsoft.VisualBasic.Interaction.Shell( C://WINDOWS//system32//shutdown.exe -s -t 00,AppWinStyle.NormalFocus,false,1000); __________________________________________________________________________ Shell( shutdown -s -t 30 ) 三十秒关机 你时宜式 没办法 我关机了 __________________________________________________________________________ 注销 Shell( Shutdown.exe /l /t 0 ) 重启 Shell( Shutdown.exe /r /f /t 0 ) 关机 Shell( shutdown.exe /s /f /t 0 ) 你的代码win98下可以的! __________________________________________________________________________ 我这里有个关机 注销 重起的类 Imports System Imports System.Text Imports System.Diagnostics Imports System.Runtime.InteropServices Public Class WindowsController Public Enum RestartOptions LogOff = 0 PowerOff = 8 Reboot = 2 ShutDown = 1 Suspend = -1 Hibernate = -2 End Enum Public Structure LUID Dim LowPart As Integer Dim HighPart As Integer End Structure Public Structure LUID_AND_ATTRIBUTES Dim pLuid As LUID Dim Attributes As Integer End Structure Public Structure TOKEN_PRIVILEGES Dim PrivilegeCount As Integer Dim Privileges As LUID_AND_ATTRIBUTES End Structure Private Const TOKEN_ADJUST_PRIVILEGES = &H20 Private Const TOKEN_QUERY = &H8 Private Const SE_PRIVILEGE_ENABLED = &H2 Private Const FORMAT_MESSAGE_FROM_SYSTEM = &H1000 Private Const EWX_FORCE = 4 Declare Function LoadLibrary Lib kernel32 Alias LoadLibraryA (ByVal lpLibFileName As String) As IntPtr Declare Function FreeLibrary Lib kernel32 (ByVal hLibModule As IntPtr) As Integer Declare Function GetProcAddress Lib kernel32 (ByVal hModule As IntPtr,ByVal lpProcName As String) As IntPtr Declare Function SetSuspendState Lib Powrprof (ByVal Hibernate As Integer,ByVal ForceCritical As Integer,ByVal DisableWakeEvent As Integer) As Integer Declare Function OpenProcessToken Lib advapi32.dll (ByVal ProcessHandle As IntPtr,ByVal DesiredAccess As Integer,ByRef TokenHandle As IntPtr) As Integer Declare Function LookupPrivilegeValue Lib advapi32.dll Alias LookupPrivilegeValueA (ByVal lpSystemName As String,ByVal lpName As String,ByRef lpLuid As LUID) As Integer Declare Function AdjustTokenPrivileges Lib advapi32.dll (ByVal TokenHandle As IntPtr,ByVal DisableAllPrivileges As Integer,ByRef NewState As TOKEN_PRIVILEGES,ByVal BufferLength As Integer,ByRef PreviousState As TOKEN_PRIVILEGES,ByRef ReturnLength As Integer) As Integer Declare Function ExitWindowsEx Lib user32 (ByVal uFlags As Integer,ByVal dwReserved As Integer) As Integer Declare Function FormatMessage Lib kernel32 Alias FormatMessageA (ByVal dwFlags As Integer,ByVal lpSource As IntPtr,ByVal dwMessageId As Integer,ByVal dwLanguageId As Integer,ByVal lpBuffer As StringBuilder,ByVal nSize As Integer,ByVal Arguments As Integer) As Integer Public Sub ExitWindows(ByVal how As RestartOptions,ByVal force As Boolean) Select Case how Case RestartOptions.Suspend SuspendSystem(False,force) Case RestartOptions.Hibernate SuspendSystem(True,force) Case Else ExitWindows(Convert.ToInt32(how),force) End Select End Sub Protected Sub ExitWindows(ByVal how As Integer,ByVal force As Boolean) EnableToken( SeShutdownPrivilege ) If force Then how = how Or EWX_FORCE If (ExitWindowsEx(how,0) = 0) Then Throw New PrivilegeException(FormatError(Marshal.GetLastWin32Error())) End Sub Protected Sub EnableToken(ByVal privilege As String) If Not CheckEntryPoint( advapi32.dll,AdjustTokenPrivileges ) Then Return Dim tokenHandle As IntPtr = IntPtr.Zero Dim privilegeLUID = New LUID Dim newPrivileges = New TOKEN_PRIVILEGES Dim tokenPrivileges As TOKEN_PRIVILEGES If (OpenProcessToken(Process.GetCurrentProcess().Handle,TOKEN_ADJUST_PRIVILEGES Or TOKEN_QUERY,tokenHandle)) = 0 Then Throw New PrivilegeException(FormatError(Marshal.GetLastWin32Error())) If (LookupPrivilegeValue(,privilege,privilegeLUID)) = 0 Then Throw New PrivilegeException(FormatError(Marshal.GetLastWin32Error())) tokenPrivileges.PrivilegeCount = 1 tokenPrivileges.Privileges.Attributes = SE_PRIVILEGE_ENABLED tokenPrivileges.Privileges.pLuid = privilegeLUID Dim Size As Integer = 4 If (AdjustTokenPrivileges(tokenHandle,tokenPrivileges,4 + (12 * tokenPrivileges.PrivilegeCount),newPrivileges,Size)) = 0 Then Throw New PrivilegeException(FormatError(Marshal.GetLastWin32Error())) End Sub Protected Sub SuspendSystem(ByVal hibernate As Boolean,ByVal force As Boolean) If Not CheckEntryPoint( powrprof.dll,SetSuspendState ) Then Throw New PlatformNotSupportedException( The SetSuspendState method is not supported on this system! ) SetSuspendState(Convert.ToInt32(IIf(hibernate,1,0)),Convert.ToInt32(IIf(force,0) End Sub Protected Function CheckEntryPoint(ByVal library As String,ByVal method As String) As Boolean Dim libPtr As IntPtr = LoadLibrary(library) If Not libPtr.Equals(IntPtr.Zero) Then If Not GetProcAddress(libPtr,method).Equals(IntPtr.Zero) Then FreeLibrary(libPtr) Return True End If FreeLibrary(libPtr) End If Return False End Function Protected Function FormatError(ByVal number As Integer) As String Dim Buffer = New StringBuilder(255) FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,IntPtr.Zero,number,Buffer,Buffer.Capacity,0) Return Buffer.ToString() End Function End Class Public Class PrivilegeException Inherits Exception Public Sub New() MyBase.New() End Sub Public Sub New(ByVal message As String) MyBase.New(message) End Sub End Class __________________________________________________________________________ （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |