先說(shuō)一下要調(diào)用的API:
'目的:退出系統(tǒng),所有句柄以O(shè)r連接
'輸入:uFlags:EWX_FORCE:可以強(qiáng)迫終止沒(méi)有響應(yīng)的進(jìn)程
' EWX_LOGOFF:可以終止進(jìn)程,然后注銷(xiāo)
' EWX_SHUTDOWN:關(guān)掉系統(tǒng)電源
' EWX_REBOOT:重新引導(dǎo)系統(tǒng)
' dwReserved:保留,設(shè)置為0
'返回:非0即成功,0為失敗!
Public Declare Function ExitWindowsEx Lib "user32" Alias "ExitWindowsEx" (ByVal uFlags As Long, ByVal dwReserved As Long) As Long
'--------------------
'以下屬性皆As Long
Public Const EWX_FORCE = 4
Public Const EWX_LOGOFF = 0
Public Const EWX_REBOOT = 2
Public Const EWX_SHUTDOWN = 1
Public Const EWX_POWEROFF = 8
好,我們?cè)賮?lái)看系統(tǒng):
2000以下的版本直接調(diào)用一個(gè)底層API:ExitWindowsEx()
2000以上的,由于內(nèi)核變成WinTN的了,你還要給程序一個(gè)權(quán)限才行.
那么我怎樣賦予程序權(quán)限呢?
Public 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
'----------------
'調(diào)用API函數(shù) GetCurrentProcess 獲取當(dāng)前進(jìn)程的句柄
hdlTokenHandle = GetCurrentProcess()
'----------------
'調(diào)用函數(shù) OpenProcessToken 打開(kāi)當(dāng)前進(jìn)程的訪(fǎng)問(wèn)代號(hào)，并存儲(chǔ)在 hdlTokenHandle 中
OpenProcessToken hdlProcessHandle, (TOKEN_ADJUST_PRIVILEGES Or TOKEN_QUERY), hdlTokenHandle
'----------------
'獲取底層權(quán)限：
LoopupPrivilegeValue "", "SeShutdownPrivilege", tmpLuid
tkp.PrivilegeCount = 1
tkp.TheLuid = tmpLuid
tkp.Attributes = SE_PRIVILEGE_ENABLED
'----------------
'為程序獲取關(guān)機(jī)權(quán)限
AdjustTokenPrivileges hdlTokenHandle, False, tkp, Len(tkpNewButIgnored), tkpNewButIgnored, lBufferNeeded
End Sub
哈哈!
這樣,我們的程序就能在2000以上的環(huán)境中調(diào)用底層權(quán)限了!
為了程序更好用,我們可以這么寫(xiě):
'如果操作系統(tǒng)不是Win 9X系列
If glngWhichWindows32 = mlngWindowsNT Then
'調(diào)用上面自定義過(guò)的函數(shù)AdjustToken
AdjustToken
End If
'調(diào)用API函數(shù)ExitWindowsEx關(guān)閉機(jī)子
Call ExitWindowsEx((EWX_SHUTDOWN Or EWX_FORCE Or EWX_POWEROFF), 0)
這樣子就能關(guān)機(jī)了.
嘿嘿,相信很多高手看了都會(huì)說(shuō)
