- ' Created by E.Spencer (elliot@spnc.demon.co.uk) - This code is public domain.
- '
- Option Explicit
- Global sValue As String
- 'Security Mask constants
- Public Const READ_CONTROL = &H20000
- Public Const SYNCHRONIZE = &H100000
- Public Const STANDARD_RIGHTS_ALL = &H1F0000
- Public Const STANDARD_RIGHTS_READ = READ_CONTROL
- Public Const STANDARD_RIGHTS_WRITE = READ_CONTROL
- Public Const KEY_QUERY_VALUE = &H1
- Public Const KEY_SET_VALUE = &H2
- Public Const KEY_CREATE_SUB_KEY = &H4
- Public Const KEY_ENUMERATE_SUB_KEYS = &H8
- Public Const KEY_NOTIFY = &H10
- Public Const KEY_CREATE_LINK = &H20
- Public 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))
- Public Const KEY_READ = ((STANDARD_RIGHTS_READ Or KEY_QUERY_VALUE Or _
- KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY) And (Not SYNCHRONIZE))
- Public Const KEY_EXECUTE = ((KEY_READ) And (Not SYNCHRONIZE))
- Public Const KEY_WRITE = ((STANDARD_RIGHTS_WRITE Or KEY_SET_VALUE _
- Or KEY_CREATE_SUB_KEY) And (Not SYNCHRONIZE))
- ' Possible registry data types
- Public Enum InTypes
- ValNull = 0
- ValString = 1
- ValXString = 2
- ValBinary = 3
- ValDWord = 4
- ValLink = 6
- ValMultiString = 7
- ValResList = 8
- End Enum
- Public Type typSrings
- Val1 As String
- Val2 As String
- End Type
- ' Registry value type definitions
- Public Const REG_NONE As Long = 0
- Public Const REG_SZ As Long = 1
- Public Const REG_EXPAND_SZ As Long = 2
- Public Const REG_BINARY As Long = 3
- Public Const REG_DWORD As Long = 4
- Public Const REG_LINK As Long = 6
- Public Const REG_MULTI_SZ As Long = 7
- Public Const REG_RESOURCE_LIST As Long = 8
- ' Registry section definitions
- Public Const HKEY_CLASSES_ROOT = &H80000000
- Public Const HKEY_CURRENT_USER = &H80000001
- Public Const HKEY_LOCAL_MACHINE = &H80000002
- Public Const HKEY_USERS = &H80000003
- Public Const HKEY_PERFORMANCE_DATA = &H80000004
- Public Const HKEY_CURRENT_CONFIG = &H80000005
- Public Const HKEY_DYN_DATA = &H80000006
- ' Codes returned by Reg API calls
- Private Const ERROR_NONE = 0
- Private Const ERROR_BADDB = 1
- Private Const ERROR_BADKEY = 2
- Private Const ERROR_CANTOPEN = 3
- Private Const ERROR_CANTREAD = 4
- Private Const ERROR_CANTWRITE = 5
- Private Const ERROR_OUTOFMEMORY = 6
- Private Const ERROR_INVALID_PARAMETER = 7
- Private Const ERROR_ACCESS_DENIED = 8
- Private Const ERROR_INVALID_PARAMETERS = 87
- Private Const ERROR_NO_MORE_ITEMS = 259
- ' Registry API functions used in this module (there are more of them)
- Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) 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, ByVal lpData As String, lpcbData As Long) 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, ByVal lpData As String, lpcbData As Long) As Long
- Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
- Private Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
- Private Declare Function RegSetValueExString Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, ByVal lpValue As String, ByVal cbData As Long) As Long
- Private Declare Function RegSetValueExLong Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpValue As Long, ByVal cbData As Long) As Long
- Private Declare Function RegFlushKey Lib "advapi32.dll" (ByVal hKey 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 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
- ' This routine allows you to get values from anywhere in the Registry, it currently
- ' only handles string, double word and binary values. Binary values are returned as
- ' hex strings.
- '
- ' Example
- ' Text1.Text = ReadRegistry(HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon", "DefaultUserName")
- '
- Public Function ReadRegistry(ByVal Group As Long, ByVal Section As String, ByVal Key As String) As String
- Dim lResult As Long, lKeyValue As Long, lDataTypeValue As Long, lValueLength As Long, sValue As String, td As Double
- Dim TStr1 As String, TStr2 As String
- Dim i As Integer
- On Error Resume Next
- lResult = RegOpenKey(Group, Section, lKeyValue)
- sValue = Space$(2048)
- lValueLength = Len(sValue)
- lResult = RegQueryValueEx(lKeyValue, Key, 0&, lDataTypeValue, sValue, lValueLength)
- If (lResult = 0) And (Err.Number = 0) Then
- If lDataTypeValue = REG_DWORD Then
- td = Asc(Mid$(sValue, 1, 1)) + &H100& * Asc(Mid$(sValue, 2, 1)) + &H10000 * Asc(Mid$(sValue, 3, 1)) + &H1000000 * CDbl(Asc(Mid$(sValue, 4, 1)))
- sValue = Format$(td, "000")
- End If
- If lDataTypeValue = REG_BINARY Then
- ' Return a binary field as a hex string (2 chars per byte)
- TStr2 = ""
- For i = 1 To lValueLength
- TStr1 = Hex(Asc(Mid(sValue, i, 1)))
- If Len(TStr1) = 1 Then TStr1 = "0" & TStr1
- TStr2 = TStr2 + TStr1
- Next
- sValue = TStr2
- Else
- sValue = Left$(sValue, lValueLength - 1)
- End If
- Else
- sValue = "Not Found"
- End If