代码征集：用vb6对注册表REG_DWORD数据的读写操作！————拜托各位高手了！祝大家周末快乐！

[linzish]

原来的注册表操作都是对string 类型的，突然要对DWORD操作，原来的函数都有问题了
有哪位高手有完整的读写代码吗？谢谢

[aohan]

应该会有帮助吧
Option Explicit
Option Compare Text
Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Private Declare Function RegCreateKeyEx Lib "advapi32.dll" Alias "RegCreateKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal Reserved As Long, ByVal lpClass As String, ByVal dwOptions As Long, ByVal samDesired As Long, lpSecurityAttributes As SECURITY_ATTRIBUTES, phkResult As Long, lpdwDisposition As Long) As Long
Private Declare Function RegDeleteKey Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal hKey As Long, ByVal lpSubKey As String) As Long
Private Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) As Long
Private 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
Private Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long
Private Declare Function RegRestoreKey Lib "advapi32.dll" Alias "RegRestoreKeyA" (ByVal hKey As Long, ByVal lpFile As String, ByVal dwFlags As Long) As Long
Private Declare Function RegSaveKey Lib "advapi32.dll" Alias "RegSaveKeyA" (ByVal hKey As Long, ByVal lpFile As String, lpSecurityAttributes As SECURITY_ATTRIBUTES) As Long
Private Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As Any, ByVal cbData As Long) As Long
Private Declare Function RegQueryInfoKey Lib "advapi32.dll" Alias "RegQueryInfoKeyA" (ByVal hKey As Long, ByVal lpClass As String, lpcbClass As Long, ByVal lpReserved As Long, lpcSubKeys As Long, lpcbMaxSubKeyLen As Long, lpcbMaxClassLen As Long, lpcValues As Long, lpcbMaxValueNameLen As Long, lpcbMaxValueLen As Long, lpcbSecurityDescriptor As Long, lpftLastWriteTime As FILETIME) As Long
Private Declare Function RegEnumValue Lib "advapi32.dll" Alias "RegEnumValueA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpValueName As String, lpcbValueName As Long, ByVal lpReserved As Long, lpType As Long, lpData As Byte, lpcbData As Long) As Long
Private Declare Function RegEnumKeyEx Lib "advapi32.dll" Alias "RegEnumKeyExA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, lpcbName As Long, ByVal lpReserved As Long, ByVal lpClass As String, lpcbClass As Long, lpftLastWriteTime As FILETIME) As Long

Private Declare Function AdjustTokenPrivileges Lib "advapi32.dll" (ByVal TokenHandle As Long, ByVal DisableAllPriv As Long, NewState As TOKEN_PRIVILEGES, ByVal BufferLength As Long, PreviousState As TOKEN_PRIVILEGES, ReturnLength As Long) As Long 'Used to adjust your program's security privileges, can't restore without it!
Private Declare Function LookupPrivilegeValue Lib "advapi32.dll" Alias "LookupPrivilegeValueA" (ByVal lpSystemName As Any, ByVal lpName As String, lpLuid As LUID) As Long 'Returns a valid LUID which is important when making security changes in NT.
Private Declare Function OpenProcessToken Lib "advapi32.dll" (ByVal ProcessHandle As Long, ByVal DesiredAccess As Long, TokenHandle As Long) As Long
Private Declare Function GetCurrentProcess Lib "kernel32" () As Long

Const REG_OPTION_NON_VOLATILE = 0 Const READ_CONTROL = &H20000
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 KEY_READ = KEY_QUERY_VALUE + KEY_ENUMERATE_SUB_KEYS + KEY_NOTIFY + READ_CONTROL
Const KEY_WRITE = KEY_SET_VALUE + KEY_CREATE_SUB_KEY + READ_CONTROL
Const KEY_EXECUTE = KEY_READ
Const KEY_ALL_ACCESS = KEY_QUERY_VALUE + KEY_SET_VALUE + KEY_CREATE_SUB_KEY + KEY_ENUMERATE_SUB_KEYS + KEY_NOTIFY + KEY_CREATE_LINK + READ_CONTROL
Const ERROR_NONE = 0
Const ERROR_BADKEY = 2
Const ERROR_ACCESS_DENIED = 8
Const ERROR_SUCCESS = 0
Const REG_FORCE_RESTORE As Long = 8&
Const TOKEN_QUERY As Long = &H8&
Const TOKEN_ADJUST_PRIVILEGES As Long = &H20&
Const SE_PRIVILEGE_ENABLED As Long = &H2
Const SE_RESTORE_NAME = "SeRestorePrivilege"
Const SE_BACKUP_NAME = "SeBackupPrivilege"

Private Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Boolean
End Type

Private Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type

Private Type LUID
lowpart As Long
highpart As Long
End Type

Private Type LUID_AND_ATTRIBUTES
pLuid As LUID
Attributes As Long
End Type

Private Type TOKEN_PRIVILEGES
PrivilegeCount As Long
Privileges As LUID_AND_ATTRIBUTES
End Type

Public Enum ValueType
REG_SZ = 1 ' ×Ö·û´®Öµ
REG_EXPAND_SZ = 2 ' ¿ÉÀ©³ä×Ö·û´®Öµ
REG_BINARY = 3 ' ¶þ½øÖÆÖµ
REG_DWORD = 4 ' DWORDÖµ
REG_MULTI_SZ = 7 ' ¶à×Ö·û´®Öµ
End Enum

' ×¢²á±í¹Ø¼ü×Ö¸ùÀàÐÍ...
Public Enum KeyRoot
HKEY_CLASSES_ROOT = &H80000000
HKEY_CURRENT_USER = &H80000001
HKEY_LOCAL_MACHINE = &H80000002
HKEY_USERS = &H80000003
HKEY_PERFORMANCE_DATA = &H80000004
HKEY_CURRENT_CONFIG = &H80000005
HKEY_DYN_DATA = &H80000006
End Enum

[aohan]

Private hKey As Long
Private i As Long, j As Long
Private Success As Long
Public Function SetKeyValue(KeyRoot As KeyRoot, KeyName As String, Optional ValueName As String, Optional Value As Variant = "", Optional ValueType As ValueType = REG_SZ) As Boolean
Dim lpAttr As SECURITY_ATTRIBUTES
lpAttr.nLength = 50
lpAttr.lpSecurityDescriptor = 0
lpAttr.bInheritHandle = True
Success = RegCreateKeyEx(KeyRoot, KeyName, 0, ValueType, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, lpAttr, hKey, 0)
If Success <> ERROR_SUCCESS Then SetKeyValue = False: RegCloseKey hKey: Exit Function
If IsMissing(ValueName) = False Then
Select Case ValueType
Case REG_SZ, REG_EXPAND_SZ, REG_MULTI_SZ
Success = RegSetValueEx(hKey, ValueName, 0, ValueType, ByVal CStr(Value), LenB(StrConv(Value, vbFromUnicode)) + 1)
Case REG_DWORD
If CDbl(Value) <= 4294967295# And CDbl(Value) >= 0 Then
Dim sValue As String
sValue = DoubleToHex(Value)
Dim dValue(3) As Byte
dValue(0) = Format("&h" & Mid(sValue, 7, 2))
dValue(1) = Format("&h" & Mid(sValue, 5, 2))
dValue(2) = Format("&h" & Mid(sValue, 3, 2))
dValue(3) = Format("&h" & Mid(sValue, 1, 2))
Success = RegSetValueEx(hKey, ValueName, 0, ValueType, dValue(0), 4)
Else
Success = ERROR_BADKEY
End If
Case REG_BINARY
On Error Resume Next
Success = 1
ReDim tmpValue(UBound(Value)) As Byte
For i = 0 To UBound(tmpValue)
tmpValue(i) = Value(i)
Next i
Success = RegSetValueEx(hKey, ValueName, 0, ValueType, tmpValue(0), UBound(Value) + 1)
End Select
End If
If Success <> ERROR_SUCCESS Then SetKeyValue = False: RegCloseKey hKey: Exit Function
RegCloseKey hKey
SetKeyValue = True
End Function

Public Function GetKeyValue(KeyRoot As KeyRoot, KeyName As String, ValueName As String, Optional ValueType As Long) As String
Dim TempValue As String
Dim Value As String
Dim ValueSize As Long
TempValue = Space(1024)
ValueSize = 1024
Select Case ValueType
Case REG_SZ, REG_MULTI_SZ, REG_EXPAND_SZ
TempValue = Left$(TempValue, ValueSize - 1)
Value = TempValue
Case REG_DWORD
ReDim dValue(3) As Byte
RegQueryValueEx hKey, ValueName, 0, REG_DWORD, dValue(0), ValueSize
For i = 3 To 0 Step -1
Value = Value + String(2 - Len(Hex(dValue(i))), "0") + Hex(dValue(i))
Next i
If CDbl("&H" & Value) < 0 Then
Value = 2 ^ 32 + CDbl("&H" & Value)
Else
Value = CDbl("&H" & Value)
End If
Case REG_BINARY
If ValueSize > 0 Then
ReDim bValue(ValueSize - 1) As Byte
RegQueryValueEx hKey, ValueName, 0, REG_BINARY, bValue(0), ValueSize
For i = 0 To ValueSize - 1
Value = Value + String(2 - Len(Hex(bValue(i))), "0") + Hex(bValue(i)) + " "
Next i
End If
End Select

' ¹Ø±Õ×¢²á±í¹Ø¼ü×Ö...
RegCloseKey hKey
GetKeyValue = Trim(Value)
End Function


Public Function DeleteKey(KeyRoot As KeyRoot, KeyName As String, Optional ValueName As String) As Boolean
Dim tmpKeyName As String
Dim tmpValueName As String

' ´ò¿ªÒ»¸öÒÑ´æÔÚµÄ×¢²á±í¹Ø¼ü×Ö...
Success = RegOpenKeyEx(KeyRoot, KeyName, 0, KEY_ALL_ACCESS, hKey)
If Success <> ERROR_SUCCESS Then DeleteKey = False: RegCloseKey hKey: Exit Function

' ɾ³ýÒÑ´ò¿ªµÄ×¢²á±í¹Ø¼ü×Ö...
tmpKeyName = ""
tmpValueName = KeyName
If ValueName = "" Then
If InStrRev(KeyName, "\") > 1 Then
tmpValueName = Right(KeyName, InStrRev(KeyName, "\") + 1)
tmpKeyName = Left(KeyName, InStrRev(KeyName, "\") - 1)
End If
Success = RegOpenKeyEx(KeyRoot, tmpKeyName, 0, KEY_ALL_ACCESS, hKey)
Success = RegDeleteKey(hKey, tmpValueName)
Else
Success = RegDeleteValue(hKey, ValueName)
End If
If Success <> ERROR_SUCCESS Then DeleteKey = False: RegCloseKey hKey: Exit Function

RegCloseKey hKey
DeleteKey = True
End Function
Public Function GetKeyInfo(KeyRoot As KeyRoot, KeyName As String, SubKeyName() As String, ValueName() As String, ValueType() As ValueType, Optional CountKey As Long, Optional CountValue As Long, Optional MaxLenKey As Long, Optional MaxLenValue As Long) As Boolean
Dim f As FILETIME
Dim l As Long, s As String

' ´ò¿ªÒ»¸öÒÑ´æÔÚµÄ×¢²á±í¹Ø¼ü×Ö...
Success = RegOpenKeyEx(KeyRoot, KeyName, 0, KEY_ALL_ACCESS, hKey)
If Success <> ERROR_SUCCESS Then GetKeyInfo = False: RegCloseKey hKey: Exit Function

' »ñµÃÒ»¸öÒÑ´ò¿ªµÄ×¢²á±í¹Ø¼ü×ÖµÄÐÅÏ¢...
Success = RegQueryInfoKey(hKey, vbNullString, ByVal 0&, ByVal 0&, CountKey, MaxLenKey, ByVal 0&, CountValue, MaxLenValue, ByVal 0&, ByVal 0&, f)
If Success <> ERROR_SUCCESS Then GetKeyInfo = False: RegCloseKey hKey: Exit Function

If CountKey <> 0 Then
ReDim SubKeyName(CountKey - 1) As String
For i = 0 To CountKey - 1
SubKeyName(i) = Space(255)
l = 255
RegEnumKeyEx hKey, i, ByVal SubKeyName(i), l, 0, vbNullString, ByVal 0&, f
SubKeyName(i) = Left(SubKeyName(i), l)
Next i

For i = 0 To UBound(SubKeyName)
For j = i + 1 To UBound(SubKeyName)
If SubKeyName(i) > SubKeyName(j) Then
s = SubKeyName(i)
SubKeyName(i) = SubKeyName(j)
SubKeyName(j) = s
End If
Next j
Next i
End If
Next j
Next i
End If

[aohan]

If CountValue <> 0 Then
ReDim ValueName(CountValue - 1) As String
ReDim ValueType(CountValue - 1) As Long
For i = 0 To CountValue - 1
ValueName(i) = Space(255)
l = 255
RegEnumValue hKey, i, ByVal ValueName(i), l, 0, ValueType(i), ByVal 0&, ByVal 0&
ValueName(i) = Left(ValueName(i), l)
Next i

For i = 0 To UBound(ValueName)
For j = i + 1 To UBound(ValueName)
If ValueName(i) > ValueName(j) Then
s = ValueName(i)
ValueName(i) = ValueName(j)
ValueName(j) = s
End If
Next j
Next i
End If

' ¹Ø±Õ×¢²á±í¹Ø¼ü×Ö...
RegCloseKey hKey
GetKeyInfo = True
End Function

Public Function SaveKey(KeyRoot As KeyRoot, KeyName As String, FileName As String) As Boolean
On Error Resume Next

Dim lpAttr As SECURITY_ATTRIBUTES ' ×¢²á±í°²È«ÀàÐÍ
lpAttr.nLength = 50 ' ÉèÖð²È«ÊôÐÔΪȱʡֵ...
lpAttr.lpSecurityDescriptor = 0 ' ...
lpAttr.bInheritHandle = True ' ...

If EnablePrivilege(SE_BACKUP_NAME) = False Then
SaveKey = False
Exit Function
End If

Success = RegOpenKeyEx(KeyRoot, KeyName, 0&, KEY_ALL_ACCESS, hKey)
If Success <> 0 Then
SaveKey = False
Success = RegCloseKey(hKey)
Exit Function
End If

Success = RegSaveKey(hKey, FileName, lpAttr)
If Success = 0 Then SaveKey = True Else SaveKey = False

Success = RegCloseKey(hKey)
End Function

Public Function RestoreKey(KeyRoot As KeyRoot, KeyName As String, FileName As String) As Boolean
On Error Resume Next

If EnablePrivilege(SE_RESTORE_NAME) = False Then
RestoreKey = False
Exit Function
End If

Success = RegOpenKeyEx(KeyRoot, KeyName, 0&, KEY_ALL_ACCESS, hKey)
If Success <> 0 Then
RestoreKey = False
Success = RegCloseKey(hKey)
Exit Function
End If

Success = RegRestoreKey(hKey, FileName, REG_FORCE_RESTORE)
If Success = 0 Then RestoreKey = True Else RestoreKey = False

Success = RegCloseKey(hKey)
End Function

Private Function EnablePrivilege(seName As String) As Boolean
On Error Resume Next

Dim p_lngRtn As Long
Dim p_lngToken As Long
Dim p_lngBufferLen As Long
Dim p_typLUID As LUID
Dim p_typTokenPriv As TOKEN_PRIVILEGES
Dim p_typPrevTokenPriv As TOKEN_PRIVILEGES

p_lngRtn = OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES Or TOKEN_QUERY, p_lngToken)
If p_lngRtn = 0 Then
EnablePrivilege = False
Exit Function
End If
If Err.LastDllError <> 0 Then
EnablePrivilege = False
Exit Function
End If

p_lngRtn = LookupPrivilegeValue(0&, seName, p_typLUID)
If p_lngRtn = 0 Then
EnablePrivilege = False
Exit Function
End If

p_typTokenPriv.PrivilegeCount = 1
p_typTokenPriv.Privileges.Attributes = SE_PRIVILEGE_ENABLED
p_typTokenPriv.Privileges.pLuid = p_typLUID

EnablePrivilege = (AdjustTokenPrivileges(p_lngToken, False, p_typTokenPriv, Len(p_typPrevTokenPriv), p_typPrevTokenPriv, p_lngBufferLen) <> 0)
End Function

Private Function DoubleToHex(ByVal Number As Double) As String
Dim strHex As String
strHex = Space(8)
For i = 1 To 8
Select Case Number - Int(Number / 16) * 16
Case 10
Mid(strHex, 9 - i, 1) = "A"
Case 11
Mid(strHex, 9 - i, 1) = "B"
Case 12
Mid(strHex, 9 - i, 1) = "C"
Case 13
Mid(strHex, 9 - i, 1) = "D"
Case 14
Mid(strHex, 9 - i, 1) = "E"
Case 15
Mid(strHex, 9 - i, 1) = "F"
Case Else
Mid(strHex, 9 - i, 1) = CStr(Number - Int(Number / 16) * 16)
End Select
Number = Int(Number / 16)
Next i
DoubleToHex = strHex
End Function