Option Explicit

Public Const REG_SZ As Long = 1
Public Const REG_DWORD As Long = 4

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_ARENA_TRASHED = 7
Public Const ERROR_ACCESS_DENIED = 8
Public Const ERROR_INVALID_PARAMETERS = 87
Public Const ERROR_NO_MORE_ITEMS = 259

Public Const KEY_QUERY_VALUE = &H1
Public Const KEY_SET_VALUE = &H2
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

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
            SetValueEx = RegSetValueExLong(hKey, sValueName, 0&, _
                    lType, lValue, 4)
    End Select
End Function

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(lhKey, szValueName, 0&, lType, _
                    sValue, cch)
            If lrc = ERROR_NONE Then
                vValue = Left$(sValue, cch - 1)
            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 Else
            'all other data types not supported
            lrc = -1
    End Select

QueryValueExExit:
    QueryValueEx = lrc
    Exit Function

QueryValueExError:
    Resume QueryValueExExit
End Function


Function QueryValue(sKeyName As String, sValueName As String)
    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(HKEY_LOCAL_MACHINE, sKeyName, 0, _
            KEY_QUERY_VALUE, hKey)
    lRetVal = QueryValueEx(hKey, sValueName, vValue)
    strPathBase = vValue
    RegCloseKey (hKey)
End Function

Function CreateNewKey(sNewKeyName As String, lPredefinedKey As Long)
    Dim hNewKey As Long         'handle to the new key
    Dim lRetVal As Long         'result of the RegCreateKeyEx function

    lRetVal = RegCreateKeyEx(lPredefinedKey, sNewKeyName, 0&, _
            vbNullString, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, _
            0&, hNewKey, lRetVal)
    RegCloseKey (hNewKey)
End Function


Function SetKeyValue(sKeyName As String, sValueName As String, vValueSetting As Variant, lValueType As Long)
    Dim lRetVal As Long         'result of the SetValueEx function
    Dim hKey As Long         'handle of open key

    'open the specified key
    lRetVal = RegOpenKeyEx(HKEY_LOCAL_MACHINE, sKeyName, 0, _
            KEY_SET_VALUE, hKey)
    lRetVal = SetValueEx(hKey, sValueName, lValueType, vValueSetting)
    RegCloseKey (hKey)
End Function

Call GrabarValorRegistro("SituacionGeografica", 1, Format(Str$(CampoNumerico(0)), "0000"))

'---------------------------------------------------------------------------------------
' Procedimiento : GrabarValorRegistro
' Fecha y hora  : 01/11/2003 20:13
' Autor         :  J
' Proposito     : Recogel los valores y llama a las API
'---------------------------------------------------------------------------------------
'
Function GrabarValorRegistro(sValueName As String, lValueType As Long, vValueSetting) As Boolean

    Call SetKeyValue("SOFTWARE\XXXXXXXXX\" + strPrograma, sValueName, vValueSetting, REG_SZ)
    
End Function