我是个初学者 在学习当中遇到一个问题 在使用其他的软件的时候我看到有一些软件可以实现关闭windwos的功能,可是我怎么才可以实现这个功能呢?
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unload 窗体名,就把开着的窗体关闭了,也将内存泄了的。
Global Const EWX_FORCE = 4 '强迫进程终止
Global Const EWX_LOGOFF = 3 '关掉在进程安全描述表中运行的所有进程,重起计算机
Global Const EWX_REBOOT = 2 '终止所有运行的进程并关闭计算机
Global Const EWX_LOGIN = 0Public Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As Long, ByVal dwReserved As Long) As Long
Shell "c:\windows\rundll32 user.exe,exitwindows", vbHide
关闭NT系统包括重启注销将下面代码复制到一个模块
Private Const EWX_LOGOFF = 0
Private Const EWX_SHUTDOWN = 1
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
Private 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
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
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
AdjustTokenPrivileges hToken, False, mPriv, 4 + (12 * mPriv.PrivilegeCount), mNewPriv, 4 + (12 * mNewPriv.PrivilegeCount)
End Sub
' Shut Down NT
Public Sub ShutDownNT(Force As Boolean)
Dim ret As Long
Dim Flags As Long
Flags = EWX_SHUTDOWN
If Force Then Flags = Flags + EWX_FORCE
If IsWinNT Then EnableShutDown
ExitWindowsEx Flags, 0
End Sub
'Restart NT
Public Sub RebootNT(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
Public Sub LogOffNT(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下面是窗体中的代码,窗体放三个命令按钮Private Sub Command1_Click()
LogOffNT True
End Sub
Private Sub Command2_Click()
RebootNT True
End Sub
Private Sub Command3_Click()
ShutDownNT True
End Sub
Private Sub Form_Load()
Command1.Caption = "注销"
Command2.Caption = "重新启动系统"
Command3.Caption = "关闭系统"
End Sub
ExitWindowsEx EWX_SHUTDOWN Or EWX_FORCE, 0如果是NT、2000、XP则
Dim hToken As Long
Dim tbk As TOKEN_PRIVILEGES
OpenProcessToken GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES Or TOKEN_QUERY, hToken
LookupPrivilegeValue "", SE_SHUTDOWN_NAME, tbk.Privileges(0).pLuid
tbk.PrivilegeCount = 1
tbk.Privileges(0).Attributes = SE_PRIVILEGE_ENABLED
AdjustTokenPrivileges hToken, 0, tbk, 0, 0, 0
ExitWindowsEx EWX_SHUTDOWN Or EWX_FORCE, 0