Visual Basic - acceso a registro

Hola a todos los foreros,
que api's tengo que utilizar para leer y escribir en el registro de windows, muchas gracias y hasta otra.

Ok

' -----------------
' ADVAPI32
' -----------------
' para Windows 32-bit API

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 ERROR_SUCCESS = 0&

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 RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal Hkey As Long, ByVal lpValueName As String) As Long
Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String, 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
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
Public Const REG_SZ = 1 ' Unicode nul terminated string
Public Const REG_DWORD = 4 ' 32-bit number

Public Sub savekey(Hkey As Long, str

Public Sub savekey(Hkey As Long, strPath As String)
Dim keyhand&
r = RegCreateKey(Hkey, strPath, keyhand&)
r = RegCloseKey(keyhand&)
End Sub

Public Function getstring(Hkey As Long, strPath As String, strValue As String)

Dim keyhand As Long
Dim datatype As Long
Dim lResult As Long
Dim strBuf As String
Dim lDataBufSize As Long
Dim intZeroPos As Integer
r = RegOpenKey(Hkey, strPath, keyhand)
lResult = RegQueryValueEx(keyhand, strValue, 0&, lValueType, ByVal 0&, lDataBufSize)
If lValueType = REG_SZ Then
strBuf = String(lDataBufSize, " ")
lResult = RegQueryValueEx(keyhand, strValue, 0&, 0&, ByVal strBuf, lDataBufSize)
If lResult = ERROR_SUCCESS Then
intZeroPos = InStr(strBuf, Chr$(0))
If intZeroPos > 0 Then
getstring = Left$(strBuf, intZeroPos - 1)
Else
getstring = strBuf
End If
End If
End If
End Function

Public Sub savestring(Hkey As Long, strPath As String, strValue As String, strdata As String)
Dim keyhand As Long
Dim r As Long
r = RegCreateKey(Hkey, strPath, keyhand)
r = RegSetValueEx(keyhand, strValue, 0, REG_SZ, ByVal strdata, Len(strdata))
r = RegCloseKey(keyhand)
End Sub

Function getdword(ByVal Hkey As Long, ByVal strPath As String, ByVal strValueName As String) As Long
Dim lResult As Long
Dim lValueType As Long
Dim lBuf As Long
Dim lDataBufSize As Long
Dim r As Long
Dim keyhand As Long

r = RegOpen

r = RegOpenKey(Hkey, strPath, keyhand)

' Get length/data type
lDataBufSize = 4

lResult = RegQueryValueEx(keyhand, strValueName, 0&, lValueType, lBuf, lDataBufSize)

If lResult = ERROR_SUCCESS Then
If lValueType = REG_DWORD Then
getdword = lBuf
End If
'Else
' Call errlog("GetDWORD-" & strPath, False)
End If

r = RegCloseKey(keyhand)

End Function

Function SaveDword(ByVal Hkey As Long, ByVal strPath As String, ByVal strValueName As String, ByVal lData As Long)
Dim lResult As Long
Dim keyhand As Long
Dim r As Long
r = RegCreateKey(Hkey, strPath, keyhand)
lResult = RegSetValueEx(keyhand, strValueName, 0&, REG_DWORD, lData, 4)
'If lResult <> error_success Then Call errlog("SetDWORD", False)
r = RegCloseKey(keyhand)
End Function

Public Function DeleteKey(ByVal Hkey As Long, ByVal strKey As String)
Dim r As Long
r = RegDeleteKey(Hkey, strKey)
End Function

Public Function DeleteValue(ByVal Hkey As Long, ByVal strPath As String, ByVal strValue As String)
Dim keyhand As Long
r = RegOpenKey(Hkey, strPath, keyhand)
r = RegDeleteValue(keyhand, strValue)
r = RegCloseKey(keyhand)
End Function
****************************************************
'Desde el FORM
'Todos botones Command

Private Sub cmdDeleteDword_Click()
'Delete the Dword value
Call DeleteValue(HKEY_CURRENT_USER, "Software\VBW\Registry", "Dword")
End Sub
%

Private Sub cmdDeleteKey_Click()
Call DeleteKey(HKEY_CURRENT_USER, "Software\VBW")
End Sub

Private Sub cmdDeleteString_Click()
'Delete the string value
Call DeleteValue(HKEY_CURRENT_USER, "Software\VBW\Registry", "String")
End Sub

Private Sub cmdGetDWord_Click()
Dim lngDword As String
'Get a String out the Registry
lngDword = getdword(HKEY_CURRENT_USER, "Software\VBW\Registry", "Dword")
MsgBox lngDword
End Sub

Private Sub cmdGetString_Click()
Dim strString As String
'Get a String out the Registry
strString = getstring(HKEY_CURRENT_USER, "Software\VBW\Registry", "String")
MsgBox strString
End Sub

Private Sub cmdSaveDword_Click()
Dim lngDword As Long
Dim strInput As String
'Ask for String
strInput = InputBox("Escriba algo para guardar en el REGISTRO")
'Check to see if the user pressed cancel
If strInput = "" Then Exit Sub
'get long value from this
lngDword = CLng(strInput)
'Edit Registry
Call SaveDword(HKEY_CURRENT_USER, "Software\VBW\Registry", "Dword", lngDword)
End Sub

Private Sub cmdSaveString_Click()
Dim strString As String
'Ask for String
strString = InputBox("Escriba algo para guardar en el REGISTRO")
'Check to see if the user pressed cancel
If strString = "" Then Exit Sub
'Edit Registry
Call savestring(HKEY_CURRENT_USER, "Software\VBW\Registry", "String", strString)
End Sub

BUEN PROVECHO.