LISTER LES LOGICIELS INSTALLES

'a mettre  dans la form 
Dim Count As Integer
Dim returnName As Collection
Dim returnSubs As Collection
Dim DisplayName As String
Dim UninstallString As String
Dim Version As String

Public Function Programs()


    Form1.lsprograms.Clear
    Call EnumRegKeys(returnName, returnSubs, "HKEY_LOCAL_MACHINE", "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")
    If returnName.Count > 0 Then
        For Count = 1 To returnName.Count
            DisplayName = GetSetting("", returnName(Count), "DisplayName", "", HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")
            UninstallString = GetSetting("", returnName(Count), "UninstallString", "", HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")
            Version = GetSetting("", returnName(Count), "Version", "", HKEY_LOCAL_MACHINE, "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")
            If DisplayName <> "" And (UninstallString <> "" Or Version <> "") Then
                Call Invent.lsprograms.AddItem(DisplayName)
            End If
        Next Count
    End If
End Function



'a mettre dans un module
 Option Explicit

Public Const REG_NONE = 0                       ' No value type
Public Const REG_SZ = 1                         ' Unicode nul terminated string
Public Const REG_EXPAND_SZ = 2                  ' Unicode nul terminated string
Public Const REG_BINARY = 3                     ' Free form binary
Public Const REG_DWORD = 4                      ' 32-bit number
Public Const REG_DWORD_LITTLE_ENDIAN = 4        ' 32-bit number (same as REG_DWORD)
Public Const REG_DWORD_BIG_ENDIAN = 5           ' 32-bit number
Public Const REG_LINK = 6                       ' Symbolic Link (unicode)
Public Const REG_MULTI_SZ = 7                   ' Multiple Unicode strings
Public Const REG_RESOURCE_LIST = 8              ' Resource list in the resource map
Public Const REG_FULL_RESOURCE_DESCRIPTOR = 9   ' Resource list in the hardware description
Public Const REG_RESOURCE_REQUIREMENTS_LIST = 10

Public Enum nKeyTypes
    nKeyTypes_STRING = 1
    nKeyTypes_DWORD = 4
End Enum

Public Enum hKeyNames
    HKEY_CLASSES_ROOT = &H80000000
    HKEY_CURRENT_USER = &H80000001
    HKEY_LOCAL_MACHINE = &H80000002
    HKEY_USERS = &H80000003
    HKEY_CURRENT_CONFIG = &H80000005
End Enum

Public Const ERROR_SUCCESS = 0&
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

Private Const SYNCHRONIZE = &H100000
Private Const STANDARD_RIGHTS_READ = &H20000
Private Const STANDARD_RIGHTS_WRITE = &H20000
Private Const STANDARD_RIGHTS_EXECUTE = &H20000
Private Const STANDARD_RIGHTS_REQUIRED = &HF0000
Private Const STANDARD_RIGHTS_ALL = &H1F0000
Private Const KEY_QUERY_VALUE = &H1
Private Const KEY_SET_VALUE = &H2
Private Const KEY_CREATE_SUB_KEY = &H4
Private Const KEY_ENUMERATE_SUB_KEYS = &H8
Private Const KEY_NOTIFY = &H10
Private Const KEY_CREATE_LINK = &H20
Private Const KEY_READ = ((STANDARD_RIGHTS_READ Or KEY_QUERY_VALUE Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY) And (Not SYNCHRONIZE))

Public Const KEY_ALL_ACCESS = &H3F

Public Const REG_OPTION_NON_VOLATILE = 0



'Registry Functions
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 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 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 RegEnumValue Lib "advapi32.dll" Alias "RegEnumValueA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpValueName As String, lpcbValueName As Long, ByVal lpReserved As Long, lpType As Long, lpData As Byte, lpcbData As Long) As Long

'Registry Functions
Public Sub EnumRegKeys(ByRef returnName As Collection, Optional ByRef returnSubs As Collection, Optional hKeyName As String = "HKEY_LOCAL_MACHINE", Optional keyname As String = "SOFTWARE", Optional ByVal checkForSubs As Boolean = False)
    Dim lRetVal As Long      'result of the API functions
    Dim lngResult2 As Long      'result of the API functions
    Dim hKey2 As Long
    Dim hKey As Long         'handle of opened key
    Dim vValue As Variant    'setting of queried value
    Dim lngKeyHandle As Long
    Dim lngResult As Long
    Dim lngCurIdx As Long
    Dim strValue As String
    Dim lngValueLen As Long
    Dim lngData As Long
    Dim lngDataLen As Long
    Dim strResult As String
    Dim lKeyName As Long
    Dim SubLevel As Boolean

    Set returnName = New Collection
    Set returnSubs = New Collection

    keyname = CompileKeyString(keyname)

    lKeyName = HKEY_LOCAL_MACHINE

    Do
        lRetVal = RegOpenKeyEx(lKeyName, keyname, 0, KEY_READ, hKey)
        lngValueLen = 2000
        strValue = String(lngValueLen, 0)
        lngDataLen = 2000
        lngResult = RegEnumKey(hKey, lngCurIdx, ByVal strValue, lngValueLen)
        lngCurIdx = lngCurIdx + 1
        RegCloseKey (hKey)

        If lngResult = ERROR_SUCCESS Then
            strResult = Left(strValue, lngValueLen)
            If InStr(1, strResult, Chr(0) & Chr(0) & Chr(0) & Chr(0), vbTextCompare) <> 0 Then
                strResult = Mid(strResult, 1, InStr(1, strResult, Chr(0) & Chr(0) & Chr(0) & Chr(0), vbTextCompare) - 1)
            Else
                strResult = strResult
            End If
            If checkForSubs = True Then
                If keyname = "" Then
                    lngResult2 = RegOpenKeyEx(lKeyName, strResult, 0, KEY_READ, hKey2)
                Else
                    lngResult2 = RegOpenKeyEx(lKeyName, keyname & "\" & strResult, 0, KEY_READ, hKey2)
                End If
                strValue = String(lngValueLen, 0)
                lngResult2 = RegEnumKey(hKey2, 0, ByVal strValue, lngValueLen)
                RegCloseKey (hKey2)
                If lngResult2 = ERROR_SUCCESS Then
                    SubLevel = True
                Else
                    SubLevel = False
                End If
                returnSubs.Add SubLevel
            End If
            returnName.Add strResult
        End If
    Loop While lngResult = ERROR_SUCCESS


End Sub
Public Function GetSetting(appname As String, Section As String, Key As String, Optional default As String, Optional hKeyName As hKeyNames = HKEY_LOCAL_MACHINE, Optional AppNameHeader As String = "SOFTWARE", Optional openReadWrite As Boolean = False)

    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
    Dim keyString As String

    On Error GoTo e_Trap

    keyString = CompileKeyString(AppNameHeader, appname, Section)

    If openReadWrite = True Then
        lRetVal = RegOpenKeyEx(hKeyName, keyString, 0, KEY_ALL_ACCESS, hKey)
    Else
        lRetVal = RegOpenKeyEx(hKeyName, keyString, 0, KEY_READ, hKey)
    End If
    lRetVal = QueryValueEx(hKey, Key, vValue)
    If IsEmpty(vValue) Or Trim(vValue) = "" Then
        vValue = default
    End If
    GetSetting = vValue
    RegCloseKey (hKey)
    Exit Function
e_Trap:
    vValue = default
    Exit Function
End Function





' Private Functions
Private Function CompileKeyString(Optional AppNameHeader As String, Optional appname As String, Optional Section As String) As String
    If AppNameHeader <> "" Then
        CompileKeyString = AppNameHeader
    End If
    If appname <> "" Then
        If CompileKeyString <> "" Then
            CompileKeyString = CompileKeyString & "\"
        End If
        CompileKeyString = CompileKeyString & appname
    End If
    If Section <> "" Then
        If CompileKeyString <> "" Then
            CompileKeyString = CompileKeyString & "\"
        End If
        CompileKeyString = CompileKeyString & Section
    End If
    Do While InStr(1, CompileKeyString, "\\", vbTextCompare) <> 0
        If InStr(1, CompileKeyString, "\\", vbTextCompare) <> 0 Then
            CompileKeyString = Mid(CompileKeyString, 1, InStr(1, CompileKeyString, "\\", vbTextCompare) - 1) & Mid(CompileKeyString, InStr(1, CompileKeyString, "\\", vbTextCompare) + 1)
        End If
    Loop

    Do While InStr(1, CompileKeyString, "/", vbTextCompare) <> 0
        If InStr(1, CompileKeyString, "/", vbTextCompare) <> 0 Then
            CompileKeyString = Mid(CompileKeyString, 1, InStr(1, CompileKeyString, "/", vbTextCompare) - 1) & "\" & Mid(CompileKeyString, InStr(1, CompileKeyString, "/", vbTextCompare) + 1)
        End If
    Loop

End Function

Private Function QueryValueEx(ByVal lhKey As Long, ByVal szValueName As String, vValue As Variant, Optional dataType As Long) As Long
    Dim cch As Long
    Dim lrc As Long
    Dim lType As Long
    Dim lValue As Long
    Dim sValue As String
    Dim Count As Integer
    Dim Holder As String
    Dim NewVal As String

    On Error GoTo QueryValueExError
    vValue = ""

    ' 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

    dataType = lType
    Select Case lType
            ' For strings
        Case REG_SZ, REG_EXPAND_SZ:
            sValue = String(cch, 0)
            lrc = RegQueryValueExString(lhKey, szValueName, 0&, lType, sValue, cch)
            If lrc = ERROR_NONE Then
                vValue = Left$(sValue, cch - 1)
            Else
                vValue = Empty
            End If
            ' For DWORDS
        Case REG_DWORD, REG_DWORD_BIG_ENDIAN:
            lrc = RegQueryValueExLong(lhKey, szValueName, 0&, lType, lValue, cch)
            If lrc = ERROR_NONE Then vValue = lValue
        Case REG_BINARY
            sValue = String(cch, 0)
            lrc = RegQueryValueExString(lhKey, szValueName, 0&, lType, sValue, cch)
            If lrc = ERROR_NONE Then
                Holder = Left$(sValue, cch - 1)
                vValue = ""
                For Count = 1 To Len(Holder)
                    NewVal = Format(Hex(Asc(Mid(Holder, Count, 1))), "00")
                    If Len(NewVal) = 1 Then
                        NewVal = "0" & NewVal
                    End If
                    vValue = vValue & NewVal & " "
                Next Count
                vValue = Trim(vValue)
            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