' module declarations

Public Const READ_CONTROL = &H20000
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 SYNCHRONIZE = &H100000
Public Const STANDARD_RIGHTS_ALL = &H1F0000
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_WRITE = ((STANDARD_RIGHTS_WRITE Or _
KEY_SET_VALUE Or KEY_CREATE_SUB_KEY) And (Not SYNCHRONIZE))
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_EXECUTE = ((KEY_READ) And (Not SYNCHRONIZE))

Public Const ERROR_SUCCESS = 0&

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
Declare Function RegCloseKey Lib "advapi32.dll" _
(ByVal hKey As Long) As Long


Function sdaGetRegEntry(strKey As String, _
strSubKeys As String, strValName As String, _
lngType As Long) As String
' Demonstration of win32 API's to query
' the system registry


On Error GoTo sdaGetRegEntry_Err

Dim lngResult As Long, lngKey As Long
Dim lngHandle As Long, lngcbData As Long
Dim strRet As String

Select Case strKey
Case "HKEY_CLASSES_ROOT": lngKey = &H80000000
Case "HKEY_CURRENT_CONFIG": lngKey = &H80000005
Case "HKEY_CURRENT_USER": lngKey = &H80000001
Case "HKEY_DYN_DATA": lngKey = &H80000006
Case "HKEY_LOCAL_MACHINE": lngKey = &H80000002
Case "HKEY_PERFORMANCE_DATA": lngKey = &H80000004
Case "HKEY_USERS": lngKey = &H80000003
Case Else: Exit Function
End Select

If Not ERROR_SUCCESS = RegOpenKeyEx(lngKey, _
strSubKeys, 0&, KEY_READ, _
lngHandle) Then Exit Function

lngResult = RegQueryValueEx(lngHandle, strValName, _
0&, lngType, ByVal strRet, lngcbData)
strRet = Space(lngcbData)
lngResult = RegQueryValueEx(lngHandle, strValName, _
0&, lngType, ByVal strRet, lngcbData)

If Not ERROR_SUCCESS = RegCloseKey(lngHandle) Then _
lngType = -1&

sdaGetRegEntry = strRet

sdaGetRegEntry_Exit:
On Error GoTo 0
Exit Function

sdaGetRegEntry_Err:
lngType = -1&
MsgBox Err & "> " & Error$, 16, _
"GenUtils/sdaGetRegEntry"
Resume sdaGetRegEntry_Exit

End Function



Dim lngType As Long, varRetString As Variant
Dim lngI As Long, intChar As Integer

varRetString = sdaGetRegEntry(cboStartKey, _
txtRegistrationPath, txtRegistrationParameter, _
lngType)

txtResult = varRetString
txtDataType = lngType
txtDataLength = Len(varRetString)

txtHex = ""
If Len(varRetString) Then
For lngI = 1 To Len(varRetString)
intChar = Asc(Mid(varRetString, lngI, 1))
If intChar > 15 Then
txtHex = txtHex & Hex(intChar) & " "
Else
txtHex = txtHex & "0" & Hex(intChar) & " "
End If
Next lngI
End If