LIRE ET ÉCRIRE DANS LA BASE DE REGISTRE FACILEMENT QUELQUESOIT L'UTILISATEUR

Option Explicit

Private Const REG_SZ = 1 ' Unicode nul terminated string
Private Const REG_BINARY = 3 ' Free form binary
Private Const HKEY_LOCAL_MACHINE = &H80000002

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 RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) As Long
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 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 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 Function GetSettigsEX(appName As String, section As String, key As String, Optional defValue As String)
    Dim strpath As String, res As String
    
    strpath = "SOFTWARE\" + appName + "\" + section
    res = GetString(HKEY_LOCAL_MACHINE, strpath, key)
    
    If res = "" And Not IsMissing(defValue) Then
        SaveString HKEY_LOCAL_MACHINE, strpath, key, defValue
        res = defValue
    End If
    
    GetSettigsEX = res
    
End Function

Private Function GetString(hKey As Long, strpath As String, strValue As String) As String
    Dim Ret As Long
    'Open the key
    RegOpenKey hKey, strpath, Ret
    'Get the key's content
    GetString = RegQueryStringValue(Ret, strValue)
    'Close the key
    RegCloseKey Ret
End Function

Private Function RegQueryStringValue(ByVal hKey As Long, ByVal strValueName As String) As String
    Dim lResult As Long, lValueType As Long, strBuf As String, lDataBufSize As Long
    'retrieve nformation about the key
    lResult = RegQueryValueEx(hKey, strValueName, 0, lValueType, ByVal 0, lDataBufSize)
    If lResult = 0 Then
        If lValueType = REG_SZ Then
            'Create a buffer
            strBuf = String(lDataBufSize, Chr$(0))
            'retrieve the key's content
            lResult = RegQueryValueEx(hKey, strValueName, 0, 0, ByVal strBuf, lDataBufSize)
            If lResult = 0 Then
                'Remove the unnecessary chr$(0)'s
                RegQueryStringValue = Left$(strBuf, InStr(1, strBuf, Chr$(0)) - 1)
            End If
        ElseIf lValueType = REG_BINARY Then
            Dim strData As Integer
            'retrieve the key's value
            lResult = RegQueryValueEx(hKey, strValueName, 0, 0, strData, lDataBufSize)
            If lResult = 0 Then
                RegQueryStringValue = strData
            End If
        End If
    End If
End Function

Private Sub SaveString(hKey As Long, strpath As String, strValue As String, strData As String)
    Dim Ret
    'Create a new key
    RegCreateKey hKey, strpath, Ret
    'Save a string to the key
    RegSetValueEx Ret, strValue, 0, REG_SZ, ByVal strData, Len(strData)
    'close the key
    RegCloseKey Ret
End Sub

Private Sub SaveStringLong(hKey As Long, strpath As String, strValue As String, strData As String)
    Dim Ret
    'Create a new key
    RegCreateKey hKey, strpath, Ret
    'Set the key's value
    RegSetValueEx Ret, strValue, 0, REG_BINARY, CByte(strData), 4
    'close the key
    RegCloseKey Ret
End Sub

Private Sub DelSetting(hKey As Long, strpath As String, strValue As String)
    Dim Ret
    'Create a new key
    RegCreateKey hKey, strpath, Ret
    'Delete the key's value
    RegDeleteValue Ret, strValue
    'close the key
    RegCloseKey Ret
End Sub