groone
asked on
Registry
I asked this before and I guess I sort of jumped the gun with the answer.
I am having a problem writing to the registry of an NT system. I can write to the registry using savesetting and retrieve using getsetting, but I need to be able to choose the HKEY root I want
I've used The following api's and no luck. They allow me to write in a win95/98 registry no problem. I dont even get an error in winNT.
'-------------------
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
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
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 Long, phkResult As Long, lpdwDisposition 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, lpData As Byte, ByVal cbData As Long) As Long
Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
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 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 WritePrivateProfileString& Lib "kernel32" Alias "WritePrivateProfileString A" (ByVal AppName$, ByVal KeyName$, ByVal keyDefault$, ByVal FileName$)
Private Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal AppName As String, ByVal KeyName As Any, keyDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long, ByVal FileName As String) As Long
'------------------------
AnswerTheMan (accepted answer) wanted me to use regtool5.dll This is an excellent reference and allows me to access the registry of a win95/98 system with only a few minor draw backs (can't create my own HKEY roots)....it is not working in winNT though and I need it to. Nothing is written to the nt registry.
service pack shouildnt matter...incidently it is sp3 but I need this to be able to run on any service pack.
Thanks....good solid answer will be rewarded quite generously. This is a hard question for me to answer but I know most of you guys it is a simple one so I will list this as a moderate +50.
I am having a problem writing to the registry of an NT system. I can write to the registry using savesetting and retrieve using getsetting, but I need to be able to choose the HKEY root I want
I've used The following api's and no luck. They allow me to write in a win95/98 registry no problem. I dont even get an error in winNT.
'-------------------
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
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
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 Long, phkResult As Long, lpdwDisposition 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, lpData As Byte, ByVal cbData As Long) As Long
Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
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 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 WritePrivateProfileString&
Private Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA"
'------------------------
AnswerTheMan (accepted answer) wanted me to use regtool5.dll This is an excellent reference and allows me to access the registry of a win95/98 system with only a few minor draw backs (can't create my own HKEY roots)....it is not working in winNT though and I need it to. Nothing is written to the nt registry.
service pack shouildnt matter...incidently it is sp3 but I need this to be able to run on any service pack.
Thanks....good solid answer will be rewarded quite generously. This is a hard question for me to answer but I know most of you guys it is a simple one so I will list this as a moderate +50.
If it's not here...well who knows?http://www.netfokus.dk/vbadmincode/codevb.html
See http://support.microsoft.com/support/kb/articles/q145/6/79.asp?FR=0
The module below is a more extended implementation of what is described in that article in enumaration and expansion.
Attribute VB_Name = "ModReg"
Option Explicit
Public Const REG_SZ As Long = 1
Public Const REG_DWORD As Long = 4
Public Const REG_EXPAND_SZ = 2
Declare Function ExpandEnvironmentStrings Lib "kernel32" Alias "ExpandEnvironmentStringsA " (ByVal lpSrc As String, ByVal lpDst As String, ByVal nSize As Long) As Long
Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
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 ERROR_NONE = 0
Public Const ERROR_BADDB = 1
Public Const ERROR_BADKEY = 2
Public Const ERROR_CANTOPEN = 3
Public Const ERROR_CANTREAD = 4
Public Const ERROR_CANTWRITE = 5
Public Const ERROR_OUTOFMEMORY = 6
Public Const ERROR_INVALID_PARAMETER = 7
Public Const ERROR_ACCESS_DENIED = 8
Public Const ERROR_INVALID_PARAMETERS = 87
Public Const ERROR_NO_MORE_ITEMS = 259
Public Const KEY_ALL_ACCESS = &H3F
Public Const REG_OPTION_NON_VOLATILE = 0
Declare Function RegCloseKey Lib "advapi32.dll" _
(ByVal hKey As Long) As Long
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, ByVal lpSecurityAttributes _
As Long, phkResult As Long, lpdwDisposition As Long) As Long
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 RegQueryValueExString 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 RegQueryValueExLong Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, lpData As _
Long, lpcbData As Long) As Long
Declare Function RegQueryValueExNULL Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, ByVal lpData _
As Long, lpcbData As Long) As Long
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
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
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
Declare Function RegEnumKeyEx Lib "advapi32.dll" Alias "RegEnumKeyExA" ( _
ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, _
lpcbName As Long, lpReserved As Long, ByVal lpClass As String, _
lpcbClass As Long, lpftLastWriteTime As FILETIME) As Long
Declare Function RegEnumValue Lib "advapi32.dll" Alias "RegEnumValueA" ( _
ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpValueName As String, _
lpcbValueName As Long, lpReserved As Long, lpType As Long, _
lpData As Byte, lpcbData As Long) As Long
Declare Function RegQueryInfoKey Lib "advapi32.dll" Alias "RegQueryInfoKeyA" ( _
ByVal hKey As Long, ByVal lpClass As String, lpcbClass As Long, 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
'************************* **********
'********* SetValueEx
'************************* **********
Public Function SetValueEx(ByVal hKey As Long, sValueName As String, _
ltype As Long, vValue As Variant) As Long
Dim lValue As Long
Dim sValue As String
Select Case ltype
Case REG_SZ
sValue = vValue + Chr$(0)
SetValueEx = RegSetValueExString(hKey, sValueName, 0&, _
ltype, sValue, Len(sValue))
Case REG_DWORD
lValue = vValue
Debug.Assert Len(sValueName) > 0 ' That does not work on windows 95
SetValueEx = RegSetValueExLong(hKey, sValueName, 0&, ltype, lValue, 4)
Case Else
Debug.Assert 0
End Select
End Function
'************************* **********
'********* QueryValueEx
'************************* **********
Function QueryValueEx(ByVal lhKey As Long, ByVal szValueName As _
String, vValue As Variant) As Long
Dim cch As Long
Dim lrc As Long
Dim ltype As Long
Dim lValue As Long
Dim sValue As String
On Error GoTo QueryValueExError
' Determine the size and type of data to be read
lrc = RegQueryValueExNULL(lhKey, szValueName, 0&, ltype, 0&, cch)
If lrc <> ERROR_NONE Then Error 5
Select Case ltype
' For strings
Case REG_SZ:
sValue = String$(cch, 0)
lrc = RegQueryValueExString(lhKe y, szValueName, 0&, ltype, _
sValue, cch)
If lrc = ERROR_NONE Then
If (cch > 1) Then
vValue = Left$(sValue, cch - 1)
Else
vValue = ""
End If
Else
vValue = Empty
End If
' For DWORDS
Case REG_DWORD:
lrc = RegQueryValueExLong(lhKey, szValueName, 0&, ltype, _
lValue, cch)
If lrc = ERROR_NONE Then vValue = lValue
Case REG_EXPAND_SZ:
sValue = String$(cch, 0)
lrc = RegQueryValueExString(lhKe y, szValueName, 0&, ltype, _
sValue, cch)
If lrc = ERROR_NONE Then
Dim result As String
result = String$(2048, 0)
Dim size As Integer
size = ExpandEnvironmentStrings(L eft$(sValu e, cch - 1), result, 2048)
sValue = Left(result, size)
vValue = sValue
Else
vValue = Empty
End If
Case Else
'all other data types not supported
lrc = -1
End Select
QueryValueExExit:
QueryValueEx = lrc
Exit Function
QueryValueExError:
Resume QueryValueExExit
End Function
'************************* **********
'********* EnumKey
'************************* **********
Public Function EnumKey(ByVal hKey As Long, ByVal index As Long, ByRef key As String) As Long
Dim cch As Long
Dim lrc As Long
Dim ltype As Long
Dim lValue As Long
Dim szKeyName As String
cch = 260
szKeyName = String$(cch, 0)
lrc = RegEnumKey(hKey, index, szKeyName, cch)
If (lrc = 0) Then
key = Left$(szKeyName, InStr(szKeyName, Chr$(0)) - 1)
End If
EnumKey = lrc
End Function
'************************* **********
'********* EnumValue
'************************* **********
Public Function EnumValue(ByVal hKey As Long, ByVal index As Long, ByRef valueName As String) As Long
Dim cch As Long
Dim lrc As Long
Dim ltype As Long
Dim lValue As Long
Dim szValueName As String
'Not tested yet
Debug.Assert 0
cch = 260
szValueName = String$(cch, 0)
lrc = RegEnumValue(hKey, index, szValueName, cch, 0, 0, 0, 0)
If (lrc = 0) Then
valueName = Left$(szValueName, InStr(szValueName, Chr$(0)) - 1)
End If
EnumValue = lrc
End Function
'************************* **********
'********* SetXXXValue
'************************* **********
Public Sub SetXXXValue(ByVal RootKey As Long, ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
Dim lRetval As Long 'result of the API functions
Dim hKey As Long 'handle of opened key
Dim lDispo As Long
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval <> 0) Then
lRetval = RegCreateKeyEx(RootKey, sKeyName, 0, "", 0, KEY_ALL_ACCESS, 0, hKey, lDispo)
End If
If (lRetval = 0) Then
lRetval = SetValueEx(hKey, sValueName, ltype, value)
RegCloseKey (hKey)
End If
End Sub
Public Sub SetUserValue(ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
SetXXXValue HKEY_CURRENT_USER, sKeyName, sValueName, ltype, value
End Sub
Public Sub SetMachineValue(ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
SetXXXValue HKEY_LOCAL_MACHINE, sKeyName, sValueName, ltype, value
End Sub
Public Sub SetClassesValue(ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
SetXXXValue HKEY_CLASSES_ROOT, sKeyName, sValueName, ltype, value
End Sub
'************************* **********
'********* QueryXXXValue
'************************* **********
Public Function QueryXXXValue(ByVal RootKey As Long, ByVal sKeyName As String, ByVal sValueName As String) As Variant
Dim lRetval As Long 'result of the API functions
Dim hKey As Long 'handle of opened key
Dim vValue As Variant 'setting of queried value
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval = 0) Then
lRetval = QueryValueEx(hKey, sValueName, vValue)
If Not (lRetval = 0) Then
vValue = Empty
End If
RegCloseKey (hKey)
End If
QueryXXXValue = vValue
End Function
Public Function QueryUserValue(ByVal sKeyName As String, ByVal sValueName As String) As Variant
QueryUserValue = QueryXXXValue(HKEY_CURRENT _USER, sKeyName, sValueName)
End Function
Public Function QueryMachineValue(ByVal sKeyName As String, ByVal sValueName As String) As Variant
QueryMachineValue = QueryXXXValue(HKEY_LOCAL_M ACHINE, sKeyName, sValueName)
End Function
Public Function QueryClassesValue(ByVal sKeyName As String, ByVal sValueName As String) As Variant
QueryClassesValue = QueryXXXValue(HKEY_CLASSES _ROOT, sKeyName, sValueName)
End Function
'************************* **********
'********* EnumXXXValues
'************************* **********
Public Function EnumXXXValues(ByVal RootKey As Long, ByVal sKeyName As String) As Variant
Dim i As Long
Dim nrValues As Long
Dim lrc As Long
Dim value As String
Dim hKey As Long
Dim AllValuesCollection As New Collection
Dim lRetval As Long
Dim vValues() As String
On Error GoTo leave
hKey = 0
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval = 0) Then
lrc = 0
i = 0
'Request all Values
While lrc = 0
lrc = EnumValue(hKey, i, value)
If (lrc = 0) Then
i = i + 1
AllValuesCollection.Add value, "Value" & i
End If
Wend
'Copy all Values in a variant array
If (i > 0) Then
nrValues = i
ReDim vValues(nrValues - 1) As String
For i = 1 To nrValues
vValues(i - 1) = AllValuesCollection("Value " & i)
Next
End If
End If
'Set return value
EnumXXXValues = vValues
leave:
If (hKey <> 0) Then
RegCloseKey hKey
End If
End Function
Public Function EnumUserValues(ByVal sKeyName As String) As Variant
EnumUserValues = EnumXXXValues(HKEY_CURRENT _USER, sKeyName)
End Function
Public Function EnumMachineValues(ByVal sKeyName As String) As Variant
EnumMachineValues = EnumXXXValues(HKEY_LOCAL_M ACHINE, sKeyName)
End Function
Public Function EnumClassesValues(ByVal sKeyName As String) As Variant
EnumClassesValues = EnumXXXValues(HKEY_CLASSES _ROOT, sKeyName)
End Function
'************************* **********
'********* EnumXXXKeys
'************************* **********
Public Function EnumXXXKeys(ByVal RootKey As Long, ByVal sKeyName As String) As Variant
Dim i As Long
Dim nrKeys As Long
Dim lrc As Long
Dim key As String
Dim hKey As Long
Dim AllKeysCollection As New Collection
Dim vKeys() As String
Dim lRetval As Long
On Error GoTo leave
hKey = 0
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval = 0) Then
lrc = 0
i = 0
'Request all keys
While lrc = 0
lrc = EnumKey(hKey, i, key)
If (lrc = 0) Then
i = i + 1
AllKeysCollection.Add key, "Key" & i
End If
Wend
'Copy all keys in a variant array
If (i > 0) Then
nrKeys = i
ReDim vKeys(nrKeys - 1) As String
For i = 1 To nrKeys
vKeys(i - 1) = AllKeysCollection("Key" & i)
Next
End If
End If
'Set return value
EnumXXXKeys = vKeys
leave:
If (hKey <> 0) Then
RegCloseKey hKey
End If
End Function
Public Function EnumUserKeys(ByVal sKeyName As String) As Variant
EnumUserKeys = EnumXXXKeys(HKEY_CURRENT_U SER, sKeyName)
End Function
Public Function EnumMachineKeys(ByVal sKeyName As String) As Variant
EnumMachineKeys = EnumXXXKeys(HKEY_LOCAL_MAC HINE, sKeyName)
End Function
Public Function EnumClassesKeys(ByVal sKeyName As String) As Variant
EnumClassesKeys = EnumXXXKeys(HKEY_CLASSES_R OOT, sKeyName)
End Function
Public Function RegClassesHasSubKeys(ByVal sKeyName As String) As Boolean
Dim lRetval As Long
Dim subkeys As Long
Dim hKey As Long 'handle of opened key
Dim ft As FILETIME
Dim Class As String
Dim cbClass As Long
Dim cbMaxSubKeyLen As Long
Dim cbMaxClassLen As Long
Dim cValues As Long
Dim cbMaxValueNameLen As Long
Dim cbMaxValueLen As Long
Dim cbSecurityDescriptor As Long
RegClassesHasSubKeys = False
lRetval = RegOpenKeyEx(HKEY_CLASSES_ ROOT, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval = 0) Then
lRetval = RegQueryInfoKey(hKey, Class, cbClass, ByVal 0, subkeys, cbMaxSubKeyLen, cbMaxClassLen, _
cValues, cbMaxValueNameLen, cbMaxValueLen, cbSecurityDescriptor, ft)
If (lRetval = 0) And subkeys > 0 Then
RegClassesHasSubKeys = True
Else
RegClassesHasSubKeys = False
End If
RegCloseKey hKey
End If
End Function
The module below is a more extended implementation of what is described in that article in enumaration and expansion.
Attribute VB_Name = "ModReg"
Option Explicit
Public Const REG_SZ As Long = 1
Public Const REG_DWORD As Long = 4
Public Const REG_EXPAND_SZ = 2
Declare Function ExpandEnvironmentStrings Lib "kernel32" Alias "ExpandEnvironmentStringsA
Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
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 ERROR_NONE = 0
Public Const ERROR_BADDB = 1
Public Const ERROR_BADKEY = 2
Public Const ERROR_CANTOPEN = 3
Public Const ERROR_CANTREAD = 4
Public Const ERROR_CANTWRITE = 5
Public Const ERROR_OUTOFMEMORY = 6
Public Const ERROR_INVALID_PARAMETER = 7
Public Const ERROR_ACCESS_DENIED = 8
Public Const ERROR_INVALID_PARAMETERS = 87
Public Const ERROR_NO_MORE_ITEMS = 259
Public Const KEY_ALL_ACCESS = &H3F
Public Const REG_OPTION_NON_VOLATILE = 0
Declare Function RegCloseKey Lib "advapi32.dll" _
(ByVal hKey As Long) As Long
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, ByVal lpSecurityAttributes _
As Long, phkResult As Long, lpdwDisposition As Long) As Long
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 RegQueryValueExString 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 RegQueryValueExLong Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, lpData As _
Long, lpcbData As Long) As Long
Declare Function RegQueryValueExNULL Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, ByVal lpData _
As Long, lpcbData As Long) As Long
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
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
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
Declare Function RegEnumKeyEx Lib "advapi32.dll" Alias "RegEnumKeyExA" ( _
ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, _
lpcbName As Long, lpReserved As Long, ByVal lpClass As String, _
lpcbClass As Long, lpftLastWriteTime As FILETIME) As Long
Declare Function RegEnumValue Lib "advapi32.dll" Alias "RegEnumValueA" ( _
ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpValueName As String, _
lpcbValueName As Long, lpReserved As Long, lpType As Long, _
lpData As Byte, lpcbData As Long) As Long
Declare Function RegQueryInfoKey Lib "advapi32.dll" Alias "RegQueryInfoKeyA" ( _
ByVal hKey As Long, ByVal lpClass As String, lpcbClass As Long, 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
'*************************
'********* SetValueEx
'*************************
Public Function SetValueEx(ByVal hKey As Long, sValueName As String, _
ltype As Long, vValue As Variant) As Long
Dim lValue As Long
Dim sValue As String
Select Case ltype
Case REG_SZ
sValue = vValue + Chr$(0)
SetValueEx = RegSetValueExString(hKey, sValueName, 0&, _
ltype, sValue, Len(sValue))
Case REG_DWORD
lValue = vValue
Debug.Assert Len(sValueName) > 0 ' That does not work on windows 95
SetValueEx = RegSetValueExLong(hKey, sValueName, 0&, ltype, lValue, 4)
Case Else
Debug.Assert 0
End Select
End Function
'*************************
'********* QueryValueEx
'*************************
Function QueryValueEx(ByVal lhKey As Long, ByVal szValueName As _
String, vValue As Variant) As Long
Dim cch As Long
Dim lrc As Long
Dim ltype As Long
Dim lValue As Long
Dim sValue As String
On Error GoTo QueryValueExError
' Determine the size and type of data to be read
lrc = RegQueryValueExNULL(lhKey,
If lrc <> ERROR_NONE Then Error 5
Select Case ltype
' For strings
Case REG_SZ:
sValue = String$(cch, 0)
lrc = RegQueryValueExString(lhKe
sValue, cch)
If lrc = ERROR_NONE Then
If (cch > 1) Then
vValue = Left$(sValue, cch - 1)
Else
vValue = ""
End If
Else
vValue = Empty
End If
' For DWORDS
Case REG_DWORD:
lrc = RegQueryValueExLong(lhKey,
lValue, cch)
If lrc = ERROR_NONE Then vValue = lValue
Case REG_EXPAND_SZ:
sValue = String$(cch, 0)
lrc = RegQueryValueExString(lhKe
sValue, cch)
If lrc = ERROR_NONE Then
Dim result As String
result = String$(2048, 0)
Dim size As Integer
size = ExpandEnvironmentStrings(L
sValue = Left(result, size)
vValue = sValue
Else
vValue = Empty
End If
Case Else
'all other data types not supported
lrc = -1
End Select
QueryValueExExit:
QueryValueEx = lrc
Exit Function
QueryValueExError:
Resume QueryValueExExit
End Function
'*************************
'********* EnumKey
'*************************
Public Function EnumKey(ByVal hKey As Long, ByVal index As Long, ByRef key As String) As Long
Dim cch As Long
Dim lrc As Long
Dim ltype As Long
Dim lValue As Long
Dim szKeyName As String
cch = 260
szKeyName = String$(cch, 0)
lrc = RegEnumKey(hKey, index, szKeyName, cch)
If (lrc = 0) Then
key = Left$(szKeyName, InStr(szKeyName, Chr$(0)) - 1)
End If
EnumKey = lrc
End Function
'*************************
'********* EnumValue
'*************************
Public Function EnumValue(ByVal hKey As Long, ByVal index As Long, ByRef valueName As String) As Long
Dim cch As Long
Dim lrc As Long
Dim ltype As Long
Dim lValue As Long
Dim szValueName As String
'Not tested yet
Debug.Assert 0
cch = 260
szValueName = String$(cch, 0)
lrc = RegEnumValue(hKey, index, szValueName, cch, 0, 0, 0, 0)
If (lrc = 0) Then
valueName = Left$(szValueName, InStr(szValueName, Chr$(0)) - 1)
End If
EnumValue = lrc
End Function
'*************************
'********* SetXXXValue
'*************************
Public Sub SetXXXValue(ByVal RootKey As Long, ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
Dim lRetval As Long 'result of the API functions
Dim hKey As Long 'handle of opened key
Dim lDispo As Long
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval <> 0) Then
lRetval = RegCreateKeyEx(RootKey, sKeyName, 0, "", 0, KEY_ALL_ACCESS, 0, hKey, lDispo)
End If
If (lRetval = 0) Then
lRetval = SetValueEx(hKey, sValueName, ltype, value)
RegCloseKey (hKey)
End If
End Sub
Public Sub SetUserValue(ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
SetXXXValue HKEY_CURRENT_USER, sKeyName, sValueName, ltype, value
End Sub
Public Sub SetMachineValue(ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
SetXXXValue HKEY_LOCAL_MACHINE, sKeyName, sValueName, ltype, value
End Sub
Public Sub SetClassesValue(ByVal sKeyName As String, ByVal sValueName As String, ByVal ltype As Long, ByVal value As Variant)
SetXXXValue HKEY_CLASSES_ROOT, sKeyName, sValueName, ltype, value
End Sub
'*************************
'********* QueryXXXValue
'*************************
Public Function QueryXXXValue(ByVal RootKey As Long, ByVal sKeyName As String, ByVal sValueName As String) As Variant
Dim lRetval As Long 'result of the API functions
Dim hKey As Long 'handle of opened key
Dim vValue As Variant 'setting of queried value
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval = 0) Then
lRetval = QueryValueEx(hKey, sValueName, vValue)
If Not (lRetval = 0) Then
vValue = Empty
End If
RegCloseKey (hKey)
End If
QueryXXXValue = vValue
End Function
Public Function QueryUserValue(ByVal sKeyName As String, ByVal sValueName As String) As Variant
QueryUserValue = QueryXXXValue(HKEY_CURRENT
End Function
Public Function QueryMachineValue(ByVal sKeyName As String, ByVal sValueName As String) As Variant
QueryMachineValue = QueryXXXValue(HKEY_LOCAL_M
End Function
Public Function QueryClassesValue(ByVal sKeyName As String, ByVal sValueName As String) As Variant
QueryClassesValue = QueryXXXValue(HKEY_CLASSES
End Function
'*************************
'********* EnumXXXValues
'*************************
Public Function EnumXXXValues(ByVal RootKey As Long, ByVal sKeyName As String) As Variant
Dim i As Long
Dim nrValues As Long
Dim lrc As Long
Dim value As String
Dim hKey As Long
Dim AllValuesCollection As New Collection
Dim lRetval As Long
Dim vValues() As String
On Error GoTo leave
hKey = 0
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval = 0) Then
lrc = 0
i = 0
'Request all Values
While lrc = 0
lrc = EnumValue(hKey, i, value)
If (lrc = 0) Then
i = i + 1
AllValuesCollection.Add value, "Value" & i
End If
Wend
'Copy all Values in a variant array
If (i > 0) Then
nrValues = i
ReDim vValues(nrValues - 1) As String
For i = 1 To nrValues
vValues(i - 1) = AllValuesCollection("Value
Next
End If
End If
'Set return value
EnumXXXValues = vValues
leave:
If (hKey <> 0) Then
RegCloseKey hKey
End If
End Function
Public Function EnumUserValues(ByVal sKeyName As String) As Variant
EnumUserValues = EnumXXXValues(HKEY_CURRENT
End Function
Public Function EnumMachineValues(ByVal sKeyName As String) As Variant
EnumMachineValues = EnumXXXValues(HKEY_LOCAL_M
End Function
Public Function EnumClassesValues(ByVal sKeyName As String) As Variant
EnumClassesValues = EnumXXXValues(HKEY_CLASSES
End Function
'*************************
'********* EnumXXXKeys
'*************************
Public Function EnumXXXKeys(ByVal RootKey As Long, ByVal sKeyName As String) As Variant
Dim i As Long
Dim nrKeys As Long
Dim lrc As Long
Dim key As String
Dim hKey As Long
Dim AllKeysCollection As New Collection
Dim vKeys() As String
Dim lRetval As Long
On Error GoTo leave
hKey = 0
lRetval = RegOpenKeyEx(RootKey, sKeyName, 0, KEY_ALL_ACCESS, hKey)
If (lRetval = 0) Then
lrc = 0
i = 0
'Request all keys
While lrc = 0
lrc = EnumKey(hKey, i, key)
If (lrc = 0) Then
i = i + 1
AllKeysCollection.Add key, "Key" & i
End If
Wend
'Copy all keys in a variant array
If (i > 0) Then
nrKeys = i
ReDim vKeys(nrKeys - 1) As String
For i = 1 To nrKeys
vKeys(i - 1) = AllKeysCollection("Key" & i)
Next
End If
End If
'Set return value
EnumXXXKeys = vKeys
leave:
If (hKey <> 0) Then
RegCloseKey hKey
End If
End Function
Public Function EnumUserKeys(ByVal sKeyName As String) As Variant
EnumUserKeys = EnumXXXKeys(HKEY_CURRENT_U
End Function
Public Function EnumMachineKeys(ByVal sKeyName As String) As Variant
EnumMachineKeys = EnumXXXKeys(HKEY_LOCAL_MAC
End Function
Public Function EnumClassesKeys(ByVal sKeyName As String) As Variant
EnumClassesKeys = EnumXXXKeys(HKEY_CLASSES_R
End Function
Public Function RegClassesHasSubKeys(ByVal
Dim lRetval As Long
Dim subkeys As Long
Dim hKey As Long 'handle of opened key
Dim ft As FILETIME
Dim Class As String
Dim cbClass As Long
Dim cbMaxSubKeyLen As Long
Dim cbMaxClassLen As Long
Dim cValues As Long
Dim cbMaxValueNameLen As Long
Dim cbMaxValueLen As Long
Dim cbSecurityDescriptor As Long
RegClassesHasSubKeys = False
lRetval = RegOpenKeyEx(HKEY_CLASSES_
If (lRetval = 0) Then
lRetval = RegQueryInfoKey(hKey, Class, cbClass, ByVal 0, subkeys, cbMaxSubKeyLen, cbMaxClassLen, _
cValues, cbMaxValueNameLen, cbMaxValueLen, cbSecurityDescriptor, ft)
If (lRetval = 0) And subkeys > 0 Then
RegClassesHasSubKeys = True
Else
RegClassesHasSubKeys = False
End If
RegCloseKey hKey
End If
End Function
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
<<""AnswerTheMan (accepted answer) wanted me to use regtool5.dll This is an excellent reference and allows me to access the registry of a win95/98 system with only a few minor draw backs (can't create my own HKEY roots)....it is not working in winNT though and I need it to. Nothing is written to the nt registry. "">>
well, i'm NT user, and it DOES write to NT registry.
i've just rechecked it.
if you hold RegEdit open as running the code - you have to REFRESH it later....
or - maybe you've tried to write to a non existance key.
anyway - it works on NT, just as on 9x.
well, i'm NT user, and it DOES write to NT registry.
i've just rechecked it.
if you hold RegEdit open as running the code - you have to REFRESH it later....
or - maybe you've tried to write to a non existance key.
anyway - it works on NT, just as on 9x.
ASKER
Mirk, I've played a bit with the code you offered and I must admit I have no clue. Could you give me an example of how to write to a registry and read from a registry with it and we assume all info is being created rather then already existing.
Thanks
Thanks
Dim keys as variant
Dim k as variant
keys = EnumUserKeys ("Software")
for each k in keys
debug.print k
next
debug.print QueryUserValue("Software", "")
Dim k as variant
keys = EnumUserKeys ("Software")
for each k in keys
debug.print k
next
debug.print QueryUserValue("Software",
ASKER
and the purple emu hopped through the 6 sided circle.
huh?
huh?
Tell me what do you want to do? Give me an example
ASKER
Manojamin had the most correct answer in making me think of the security of the nt box. Put in current user and all worked fine.
http://www.thescarms.com/vbasic/Registry.htm