請問各位前輩    我用

    TRegsitry *reg = new TRegistry;
    reg->RootKey = HKEY_LOCAL_MACHINE;
    if ( reg->OpenKey("system\\currentcontrolset\\enum",false) )//在這失敗
    {
        XXXXXXXX;
    }
    delete reg;
    
 

但是，我如果把enum換成control,Services都可以 因為我想要刪除裡面的值 所以我雖然可以用 reg->OpenKeyReadOnly("system\\currentcontrolset\\enum") 但是我在reg->DeleteKey("XXXX")這邊還是會失敗 不知道各位前輩，有什麼方法可以讓我清除Enum底下的值(重灌就不用教了)

看看是否有幫助 http://www.vckbase.com/code/relateddoc.asp?id=1902    

DeleteKey (struct HKEY__*ReRootKey,TCHAR *ReSubKey,TCHAR *ReKeyName)
{
        int i=0;        //操作結果：0==succeed
        if((RegOpenKeyEx(ReRootKey,ReSubKey,0,KEY_WRITE,&hKey))==ERROR_SUCCESS)
        {
                if((RegDeleteKey(hKey,ReKeyName))!=ERROR_SUCCESS)
                {
                        //AfxMessageBox("清除指定項失敗！");
                        i=1;
                }
                RegCloseKey(hKey);
        }
        else
        {
                //AfxMessageBox("錯誤：無法打開有關的hKEY");
                i=1;
        }
        return i;
}

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------
能力不足，求助於人；有能力時，幫幫別人；如果您滿意答覆，請適時結案！

子曰：問有三種，不懂則問，雖懂有疑則問，雖懂而想知更多則問！

雖然是 Visual Basic 範例，或許有幫助 看看能否變更 OpenKey開啟屬性，或使用類似OpenKey函數 http://dns.tlw.cn/3224.htm    

Type Formstate
    Deleted As Integer
    Dirty As Integer
    Color As Long
End Type
Public Fstate As Formstate
Public Fstring As String
Public Gstring As String
Public Sstring As String
Public StartPos As Integer
Public EndPos As Integer
Public Tchange As Boolean
Type FILETIME
    lLowDateTime    As Long
    lHighDateTime   As Long
End Type
 
Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As Long) As Long
Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Declare Function RegDeleteKey Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal hKey As Long, ByVal lpSubKey As String) As Long
Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, ByVal lpData As String, lpcbData As Long) As Long
Declare Function RegQueryValueExA Lib "advapi32.dll" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, ByRef lpData As Long, lpcbData As Long) As Long
Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, ByVal lpData As String, ByVal cbData As Long) As Long
Declare Function RegSetValueExA Lib "advapi32.dll" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, ByRef lpData As Long, ByVal cbData As Long) As Long
Declare Function RegSetValueExB Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, ByRef lpData As Byte, ByVal cbData As Long) As Long
Const ERROR_SUCCESS = 0&
Const ERROR_BADDB = 1009&
Const ERROR_BADKEY = 1010&
Const ERROR_CANTOPEN = 1011&
Const ERROR_CANTREAD = 1012&
Const ERROR_CANTWRITE = 1013&
Const ERROR_OUTOFMEMORY = 14&
Const ERROR_INVALID_PARAMETER = 87&
Const ERROR_ACCESS_DENIED = 5&
Const ERROR_NO_MORE_ITEMS = 259&
Const ERROR_MORE_DATA = 234&
Const REG_NONE = 0&
Const REG_SZ = 1&
Const REG_EXPAND_SZ = 2&
Const REG_BINARY = 3&
Const REG_DWORD = 4&
Const REG_DWORD_LITTLE_ENDIAN = 4&
Const REG_DWORD_BIG_ENDIAN = 5&
Const REG_LINK = 6&
Const REG_MULTI_SZ = 7&
Const REG_RESOURCE_LIST = 8&
Const REG_FULL_RESOURCE_DESCRIPTOR = 9&
Const REG_RESOURCE_REQUIREMENTS_LIST = 10&
Const KEY_QUERY_VALUE = &H1&
Const KEY_SET_VALUE = &H2&
Const KEY_CREATE_SUB_KEY = &H4&
Const KEY_ENUMERATE_SUB_KEYS = &H8&
Const KEY_NOTIFY = &H10&
Const KEY_CREATE_LINK = &H20&
Const READ_CONTROL = &H20000
Const WRITE_DAC = &H40000
Const WRITE_OWNER = &H80000
Const SYNCHRONIZE = &H100000
Const STANDARD_RIGHTS_REQUIRED = &HF0000
Const STANDARD_RIGHTS_READ = READ_CONTROL
Const STANDARD_RIGHTS_WRITE = READ_CONTROL
Const STANDARD_RIGHTS_EXECUTE = READ_CONTROL
Const KEY_READ = STANDARD_RIGHTS_READ Or KEY_QUERY_VALUE Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY
Const KEY_WRITE = STANDARD_RIGHTS_WRITE Or KEY_SET_VALUE Or KEY_CREATE_SUB_KEY
Const KEY_EXECUTE = KEY_READ
Dim hKey As Long, MainKeyHandle As Long
Dim rtn As Long, lBuffer As Long, sBuffer As String
Dim lBufferSize As Long
Dim lDataSize As Long
Dim ByteArray() As Byte
'This constant determins wether or not to display error messages to the
'user. I have set the default value to False as an error message can and
'does become irritating after a while. Turn this value to true if you want
'to debug your programming code when reading and writing to your system
'registry, as any errors will be displayed in a message box.
Const DisplayErrorMsg = False    Function SetDWORDValue(SubKey As String, Entry As String, Value As Long)
Call ParseKey(SubKey, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_WRITE, hKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key was open successfully then
      rtn = RegSetValueExA(hKey, Entry, 0, REG_DWORD, Value, 4) 'write the value
      If Not rtn = ERROR_SUCCESS Then   'if there was an error writting the value
         If DisplayErrorMsg = True Then 'if the user want errors displayed
            MsgBox ErrorMsg(rtn)        'display the error
         End If
      End If
      rtn = RegCloseKey(hKey) 'close the key
   Else 'if there was an error opening the key
      If DisplayErrorMsg = True Then 'if the user want errors displayed
         MsgBox ErrorMsg(rtn) 'display the error
      End If
   End If
End If
End Function
Function GetDWORDValue(SubKey As String, Entry As String)
Call ParseKey(SubKey, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_READ, hKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key could be opened then
      rtn = RegQueryValueExA(hKey, Entry, 0, REG_DWORD, lBuffer, 4) 'get the value from the registry
      If rtn = ERROR_SUCCESS Then 'if the value could be retreived then
         rtn = RegCloseKey(hKey)  'close the key
         GetDWORDValue = lBuffer  'return the value
      Else                        'otherwise, if the value couldnt be retreived
         GetDWORDValue = "Error"  'return Error to the user
         If DisplayErrorMsg = True Then 'if the user wants errors displayed
            MsgBox ErrorMsg(rtn)        'tell the user what was wrong
         End If
      End If
   Else 'otherwise, if the key couldnt be opened
      GetDWORDValue = "Error"        'return Error to the user
      If DisplayErrorMsg = True Then 'if the user wants errors displayed
         MsgBox ErrorMsg(rtn)        'tell the user what was wrong
      End If
   End If
End If
End Function
Function SetBinaryValue(SubKey As String, Entry As String, Value As String)
Call ParseKey(SubKey, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_WRITE, hKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key was open successfully then
      lDataSize = Len(Value)
      ReDim ByteArray(lDataSize)
      For i = 1 To lDataSize
      ByteArray(i) = Asc(Mid$(Value, i, 1))
      Next
      rtn = RegSetValueExB(hKey, Entry, 0, REG_BINARY, ByteArray(1), lDataSize) 'write the value
      If Not rtn = ERROR_SUCCESS Then   'if the was an error writting the value
         If DisplayErrorMsg = True Then 'if the user want errors displayed
            MsgBox ErrorMsg(rtn)        'display the error
         End If
      End If
      rtn = RegCloseKey(hKey) 'close the key
   Else 'if there was an error opening the key
      If DisplayErrorMsg = True Then 'if the user wants errors displayed
         MsgBox ErrorMsg(rtn) 'display the error
      End If
   End If
End If
End Function    Function GetBinaryValue(SubKey As String, Entry As String)
Call ParseKey(SubKey, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_READ, hKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key could be opened
      lBufferSize = 1
      rtn = RegQueryValueEx(hKey, Entry, 0, REG_BINARY, 0, lBufferSize) 'get the value from the registry
      sBuffer = Space(lBufferSize)
      rtn = RegQueryValueEx(hKey, Entry, 0, REG_BINARY, sBuffer, lBufferSize) 'get the value from the registry
      If rtn = ERROR_SUCCESS Then 'if the value could be retreived then
         rtn = RegCloseKey(hKey)  'close the key
         GetBinaryValue = sBuffer 'return the value to the user
      Else                        'otherwise, if the value couldnt be retreived
         GetBinaryValue = "Error" 'return Error to the user
         If DisplayErrorMsg = True Then 'if the user wants to errors displayed
            MsgBox ErrorMsg(rtn)  'display the error to the user
         End If
      End If
   Else 'otherwise, if the key couldnt be opened
      GetBinaryValue = "Error" 'return Error to the user
      If DisplayErrorMsg = True Then 'if the user wants to errors displayed
         MsgBox ErrorMsg(rtn)  'display the error to the user
      End If
   End If
End If
End Function
Function DeleteKey(Keyname As String)
Call ParseKey(Keyname, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, Keyname, 0, KEY_WRITE, hKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key could be opened then
      rtn = RegDeleteKey(hKey, Keyname) 'delete the key
      rtn = RegCloseKey(hKey)  'close the key
   End If
End If
End Function
Function GetMainKeyHandle(MainKeyName As String) As Long
Const HKEY_CLASSES_ROOT = &H80000000
Const HKEY_CURRENT_USER = &H80000001
Const HKEY_LOCAL_MACHINE = &H80000002
Const HKEY_USERS = &H80000003
Const HKEY_PERFORMANCE_DATA = &H80000004
Const HKEY_CURRENT_CONFIG = &H80000005
Const HKEY_DYN_DATA = &H80000006
   
Select Case MainKeyName
       Case "HKEY_CLASSES_ROOT"
            GetMainKeyHandle = HKEY_CLASSES_ROOT
       Case "HKEY_CURRENT_USER"
            GetMainKeyHandle = HKEY_CURRENT_USER
       Case "HKEY_LOCAL_MACHINE"
            GetMainKeyHandle = HKEY_LOCAL_MACHINE
       Case "HKEY_USERS"
            GetMainKeyHandle = HKEY_USERS
       Case "HKEY_PERFORMANCE_DATA"
            GetMainKeyHandle = HKEY_PERFORMANCE_DATA
       Case "HKEY_CURRENT_CONFIG"
            GetMainKeyHandle = HKEY_CURRENT_CONFIG
       Case "HKEY_DYN_DATA"
            GetMainKeyHandle = HKEY_DYN_DATA
End Select
End Function
Function ErrorMsg(lErrorCode As Long) As String
    
'If an error does accurr, and the user wants error messages displayed, then
'display one of the following error messages
Select Case lErrorCode
       Case 1009, 1015
            GetErrorMsg = "The Registry Database is corrupt!"
       Case 2, 1010
            GetErrorMsg = "Bad Key Name"
       Case 1011
            GetErrorMsg = "Can't Open Key"
       Case 4, 1012
            GetErrorMsg = "Can't Read Key"
       Case 5
            GetErrorMsg = "Access to this key is denied"
       Case 1013
            GetErrorMsg = "Can't Write Key"
       Case 8, 14
            GetErrorMsg = "Out of memory"
       Case 87
            GetErrorMsg = "Invalid Parameter"
       Case 234
            GetErrorMsg = "There is more data than the buffer has been allocated to hold."
       Case Else
            GetErrorMsg = "Undefined Error Code:  " & Str$(lErrorCode)
End Select
End Function
 
Function GetStringValue(SubKey As String, Entry As String)
Call ParseKey(SubKey, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_READ, hKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key could be opened then
      sBuffer = Space(255)     'make a buffer
      lBufferSize = Len(sBuffer)
      rtn = RegQueryValueEx(hKey, Entry, 0, REG_SZ, sBuffer, lBufferSize) 'get the value from the registry
      If rtn = ERROR_SUCCESS Then 'if the value could be retreived then
         rtn = RegCloseKey(hKey)  'close the key
         sBuffer = Trim(sBuffer)
         GetStringValue = Left(sBuffer, Len(sBuffer) - 1) 'return the value to the user
      Else                        'otherwise, if the value couldnt be retreived
         GetStringValue = "Error" 'return Error to the user
         If DisplayErrorMsg = True Then 'if the user wants errors displayed then
            MsgBox ErrorMsg(rtn)  'tell the user what was wrong
         End If
      End If
   Else 'otherwise, if the key couldnt be opened
      GetStringValue = "Error"       'return Error to the user
      If DisplayErrorMsg = True Then 'if the user wants errors displayed then
         MsgBox ErrorMsg(rtn)        'tell the user what was wrong
      End If
   End If
End If
End Function
Private Sub ParseKey(Keyname As String, Keyhandle As Long)
    
rtn = InStr(Keyname, "\") 'return if "\" is contained in the Keyname
If Left(Keyname, 5) <> "HKEY_" Or Right(Keyname, 1) = "\" Then 'if the is a "\" at the end of the Keyname then
   MsgBox "Incorrect Format:"   Chr(10)   Chr(10)   Keyname 'display error to the user
   Exit Sub 'exit the procedure
ElseIf rtn = 0 Then 'if the Keyname contains no "\"
   Keyhandle = GetMainKeyHandle(Keyname)
   Keyname = "" 'leave Keyname blank
Else 'otherwise, Keyname contains "\"
   Keyhandle = GetMainKeyHandle(Left(Keyname, rtn - 1)) 'seperate the Keyname
   Keyname = Right(Keyname, Len(Keyname) - rtn)
End If
End Sub
Function CreateKey(SubKey As String)
Call ParseKey(SubKey, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegCreateKey(MainKeyHandle, SubKey, hKey) 'create the key
   If rtn = ERROR_SUCCESS Then 'if the key was created then
      rtn = RegCloseKey(hKey)  'close the key
   End If
End If
End Function
Function SetStringValue(SubKey As String, Entry As String, Value As String)
Call ParseKey(SubKey, MainKeyHandle)
If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_WRITE, hKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key was open successfully then
      rtn = RegSetValueEx(hKey, Entry, 0, REG_SZ, ByVal Value, Len(Value)) 'write the value
      If Not rtn = ERROR_SUCCESS Then   'if there was an error writting the value
         If DisplayErrorMsg = True Then 'if the user wants errors displayed
            MsgBox ErrorMsg(rtn)        'display the error
         End If
      End If
      rtn = RegCloseKey(hKey) 'close the key
   Else 'if there was an error opening the key
      If DisplayErrorMsg = True Then 'if the user wants errors displayed
         MsgBox ErrorMsg(rtn)        'display the error
      End If
   End If
End If
End Function

********************* 如果您滿意答案,請結案 *********************

------
能力不足，求助於人；有能力時，幫幫別人；如果您滿意答覆，請適時結案！

子曰：問有三種，不懂則問，雖懂有疑則問，雖懂而想知更多則問！

pcboy2你好: 很抱歉這麼慢才回覆 RegOpenKeyEx(ReRootKey,ReSubKey,0,KEY_WRITE,&hKey) 這方式我剛試過了，他雖然可以打開一般的key 可是他還是無法打開system\\currentcontrolset\\enum 所以，更別說是更改或刪除了

http://delphi.ktop.com.tw/topic.php?TOPIC_ID=61310 權限

conundrum你好: 果然是權限問題 雖然我可以手動在Registry中打開權限(設成系統權限) 也可以順利刪除機碼了 但是在程式中卻設不起來刪除的權限 SE_XXXXX_NAME我在winnt.h中有找到 可是全部都試了，似乎找不到一個可以開起刪除權限名稱

1 使用A桌面啟動exe 但是卻使用S權限執行 (KTOP下有篇變更權限執行的文章 找包子版主資料) 2 另類解法 利用winrar寫好command的批次檔 A桌面執行 自解壓縮檔之後 由自解壓縮檔的.bat執行 (這寫啥 就看自己觀念與comaand的運用)