A Easy way to READ/WRITE and DELETE from the registry.
I’ve designed this class to be as easy as posible to use.
To read write and delete from the registry is actually easy (if you know how). With this code you can be a pro in the regestry without realy working with the nitty-gritty of the API Call’s etc. Hope you guys/gals out there
could use this code. Thanks VB Qaid for the Write Reg functions. I have to thank all the input I got in the comment section of this code as well. You guy’s made this code better, I thank you (Enrique, Chris).
Original Author: Riaan Aspeling
Assumptions
If you do find any problems (not Microsoft related) let me
know at :
riaana@hotmail.com
Have fun with the registry 😉
API Declarations
Option Explicit
‘Registry API’s to use
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 RegEnumKey Lib “advapi32.dll” Alias “RegEnumKeyA” (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, ByVal cbName As Long) As Long
Private Declare Function RegEnumValue Lib “advapi32.dll” Alias “RegEnumValueA” (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, cbName As Long, ByVal lpReserved As Long, lpType As Long, ByVal lpData As String, lpcbData 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 RegDeleteValue Lib “advapi32.dll” Alias “RegDeleteValueA” (ByVal hKey As Long, ByVal lpValueName As String) As Long
Private Declare Function RegDeleteKey Lib “advapi32.dll” Alias “RegDeleteKeyA” (ByVal hKey As Long, ByVal lpKeyName As String) As Long
Private Declare Function RegCloseKey Lib “advapi32.dll” (ByVal hKey As Long) As Long
Private Declare Function ExpandEnvironmentStrings Lib “advapi32.dll” (lpSrc As String, lpDst As String, ByVal nSize As Long) As Long
Private Declare Function RegCreateKeyEx Lib “advapi32” 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 RegSetValueEx Lib “advapi32” 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
Private Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Variant
bInheritHandle As Long
End Type
‘Enum’s for the OpenRegistry function
Public Enum HKeys
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
‘Enum’s for the DataTypes
Public Enum lDataType
REG_NONE = 0
REG_SZ = 1
REG_EXPAND_SZ = 2
REG_BINARY = 3
REG_DWORD = 4
REG_DWORD_LITTLE_ENDIAN = 4
REG_DWORD_BIG_ENDIAN = 5
REG_LINK = 6
REG_MULTI_SZ = 7
REG_RESOURCE_LIST = 8
REG_FULL_RESOURCE_DESCRIPTOR = 9
REG_RESOURCE_REQUIREMENTS_LIST = 10
End Enum
‘Right’s for the OpenRegistry
Private Const STANDARD_RIGHTS_ALL = &H1F0000
Private Const KEY_QUERY_VALUE = &H1
Private Const KEY_SET_VALUE = &H2
Private Const KEY_CREATE_SUB_KEY = &H4
Private Const KEY_ENUMERATE_SUB_KEYS = &H8
Private Const KEY_NOTIFY = &H10
Private Const KEY_CREATE_LINK = &H20
Private Const SYNCHRONIZE = &H100000
Private Const KEY_READ = &H20009
Private Const KEY_WRITE = &H20006
Private Const KEY_READ_WRITE = ( _
KEY_READ _
Or _
KEY_WRITE _
)
Private Const KEY_ALL_ACCESS = ( _
( _
STANDARD_RIGHTS_ALL Or _
KEY_QUERY_VALUE Or _
KEY_SET_VALUE Or _
KEY_CREATE_SUB_KEY Or _
KEY_ENUMERATE_SUB_KEYS Or _
KEY_NOTIFY Or _
KEY_CREATE_LINK _
) _
And _
( _
Not SYNCHRONIZE _
) _
)
Private Const REG_OPTION_NON_VOLATILE = 0&
Private Const REG_OPTION_VOLATILE = &H1
Code
'Local var's to keep track of things happening
Dim RootHKey As HKeys
Dim SubDir As String
Dim hKey As Long
Dim OpenRegOk As Boolean
'This function will return a array of variant with all the subkey values
'eg.
' Dim MyVariant As Variant, MyReg As New CReadWriteEasyReg, i As Integer
' If Not MyReg.OpenRegistry(HKEY_LOCAL_MACHINE, "SoftwareMicrosoft") Then
' MsgBox "Couldn't open the registry"
' Exit Sub
' End If
' MyVariant = MyReg.GetAllSubDirectories
' For i = LBound(MyVariant) To UBound(MyVariant)
' Debug.Print MyVariant(i)
' Next i
' MyReg.CloseRegistry
Function GetAllSubDirectories() As Variant
On Error GoTo handelgetdirvalues
Dim SubKey_Num As Integer
Dim SubKey_Name As String
Dim length As Long
Dim ReturnArray() As Variant
If Not OpenRegOk Then Exit Function
'Get the Dir List
SubKey_Num = 0
Do
length = 256
SubKey_Name = Space$(length)
If RegEnumKey(hKey, SubKey_Num, SubKey_Name, length) <> 0 Then
Exit Do
End If
SubKey_Name = Left$(SubKey_Name, InStr(SubKey_Name, Chr$(0)) - 1)
ReDim Preserve ReturnArray(SubKey_Num) As Variant
ReturnArray(SubKey_Num) = SubKey_Name
SubKey_Num = SubKey_Num + 1
Loop
GetAllSubDirectories = ReturnArray
Exit Function
handelgetdirvalues:
GetAllSubDirectories = Null
Exit Function
End Function
'This function will return a true or false when it creates a key for you
'eg.
' Dim MyReg As New CReadWriteEasyReg
' If Not MyReg.OpenRegistry(HKEY_LOCAL_MACHINE, "SoftwareMicrosoft") Then
' MsgBox "Couldn't open the registry"
' Exit Sub
' End If
' if MyReg.CreateDirectory("TestDir") then
' Msgbox "Key created"
' else
' msgbox "Couldn't Create key"
' end if
' MyReg.CloseRegistry
Public Function CreateDirectory(ByVal sNewDirName As String) As Boolean
Dim hNewKey As Long, lpdwDisposition As Long
Dim lpSecurityAttributes As SECURITY_ATTRIBUTES
Dim lReturn As Long
If Not OpenRegOk Then Exit Function
lReturn = RegCreateKeyEx(hKey, sNewDirName, 0&, "", REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, lpSecurityAttributes, hNewKey, lpdwDisposition)
If lReturn = 0 Then
CreateDirectory = True
Else
CreateDirectory = False
End If
End Function
'This function will return a true or false when it deletes a key for you
'eg.
' Dim MyReg As New CReadWriteEasyReg
' If Not MyReg.OpenRegistry(HKEY_LOCAL_MACHINE, "SoftwareMicrosoft") Then
' MsgBox "Couldn't open the registry"
' Exit Sub
' End If
' if MyReg.DeleteDirectory("MyTestDir") then
' Msgbox "Key Deleted"
' else
' msgbox "Couldn't Delete key"
' end if
' MyReg.CloseRegistry
Public Function DeleteDirectory(ByVal sKeyName As String) As Boolean
Dim lReturn As Long
If Not OpenRegOk Then Exit Function
lReturn = RegDeleteKey(hKey, sKeyName)
If lReturn = 0 Then
DeleteDirectory = True
Else
DeleteDirectory = False
End If
End Function
'This function will return a array of variant with all the value names in a key
'eg.
' Dim MyVariant As Variant, MyReg As New CReadWriteEasyReg, i As Integer
' If Not MyReg.OpenRegistry(HKEY_LOCAL_MACHINE, "HardWareDescriptionSystemCentralProcessor