BOITE DE DIALOGUE PARCOURIR REPERTOIRE

'==================================
'  Code trouve sur le site :
'  http://www.c2i.fr/code.asp?IDCode=1083
'==================================
'a mettre dans un module :
'==================================
Private Const BIF_STATUSTEXT = &H4&
Private Const BIF_RETURNONLYFSDIRS = 1
Private Const BIF_DONTGOBELOWDOMAIN = 2
Private Const MAX_PATH = 260

Private Const WM_USER = &H400
Private Const BFFM_INITIALIZED = 1
Private Const BFFM_SELCHANGED = 2
Private Const BFFM_SETSTATUSTEXT = (WM_USER + 100)
Private Const BFFM_SETSELECTION = (WM_USER + 102)

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As String) As Long
Private Declare Function SHBrowseForFolder Lib "shell32" (lpbi As BrowseInfo) As Long
Private Declare Function SHGetPathFromIDList Lib "shell32" (ByVal pidList As Long, ByVal lpBuffer As String) As Long
Private Declare Function lstrcat Lib "kernel32" Alias "lstrcatA" (ByVal lpString1 As String, ByVal lpString2 As String) As Long

Private Type BrowseInfo
    hWndOwner As Long
    pIDLRoot As Long
    pszDisplayName As Long
    lpszTitle As Long
    ulFlags As Long
    lpfnCallback As Long
    lParam As Long
    iImage As Long
End Type

Private m_CurrentDirectory As String 'The current directory

Public Function BrowseForFolder(owner As Form, Title As String, StartDir As String) As String
'ouvre la boite de dialogue sélectionnant un dossier

Dim lpIDList As Long
Dim szTitle As String
Dim sBuffer As String
Dim tBrowseInfo As BrowseInfo
m_CurrentDirectory = StartDir & vbNullChar

szTitle = Title
With tBrowseInfo
    .hWndOwner = owner.hWnd
    .lpszTitle = lstrcat(szTitle, "")
    .ulFlags = BIF_RETURNONLYFSDIRS + BIF_DONTGOBELOWDOMAIN + BIF_STATUSTEXT
    .lpfnCallback = GetAddressofFunction(AddressOf BrowseCallbackProc) 'get address of function.
End With

lpIDList = SHBrowseForFolder(tBrowseInfo)
If (lpIDList) Then
    sBuffer = Space(MAX_PATH)
    SHGetPathFromIDList lpIDList, sBuffer
    sBuffer = Left(sBuffer, InStr(sBuffer, vbNullChar) - 1)
    BrowseForFolder = sBuffer
Else
    BrowseForFolder = ""
End If

End Function

Private Function BrowseCallbackProc(ByVal hWnd As Long, ByVal uMsg As Long, ByVal lp As Long, ByVal pData As Long) As Long

Dim lpIDList As Long
Dim ret As Long
Dim sBuffer As String

On Error Resume Next 'Sugested by MS to prevent an error from
'propagating back into the calling process.

Select Case uMsg

    Case BFFM_INITIALIZED
        Call SendMessage(hWnd, BFFM_SETSELECTION, 1, m_CurrentDirectory)
    Case BFFM_SELCHANGED
        sBuffer = Space(MAX_PATH)
        ret = SHGetPathFromIDList(lp, sBuffer)
        If ret = 1 Then
            Call SendMessage(hWnd, BFFM_SETSTATUSTEXT, 0, sBuffer)
        End If
End Select

BrowseCallbackProc = 0

End Function

' This function allows you to assign a function pointer to a vaiable.
Private Function GetAddressofFunction(add As Long) As Long
    GetAddressofFunction = add
End Function


'=====================================
'exemple d'utilisation, dans une procedure
'=====================================
Dim rep as String
rep = BrowseForFolder(Me, "Un texte", "c:\windows\")