Microsoft & .NET Visual Basic Display the Browse For Folder Dialog

Display the Browse For Folder Dialog

Author: Gilles ROY

Browse Folders Dialog

This code allows you to dispay the Browse Folders dialog with one simple function call. The function returns the name of the selected folder, or an empty string if cancel was pressed.

Screen Shot

Paste the below code straight into a BAS module, or download the BAS file from the below link.


'###############################################################################
'# $FICHIER : BrowseFolders.bas
'# $VERSION : v1.0
'#
'# HISTORI/UE DES MODIFICATIONS/
'# v1.0 OD 14/05/1999 Création
'###############################################################################
option Explicit

'Constantes
private Const BIF_RETURNONLYFSDIRS = &H1 'Uniquement des répertoire
private Const BIF_DONTGOBELOWDOMAIN = &H2 'Domaine globale intredit
private Const BIF_STATUSTEXT = &H4 'Zone de saisie autorisée
private Const BIF_RETURNFSANCESTORS = &H8
private Const BIF_EDITBOX = &H10 'Zone de saisie autorisée
private Const BIF_VALIDATE = &H20 'insist on valid result (or CANCEL)
private Const BIF_BROWSEFORCOMPUTER = &H1000 'Uniquement des PCs.
private Const BIF_BROWSEFORPRINTER = &H2000 'Uniquement des imprimantes
private Const BIF_BROWSEINCLUDEFILES = &H4000 'Browsing for Everything

private Const MAX_PATH = 260

'Types
private Type T_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

'Fonctions API Windows
private Declare Function SHBrowseForFolder Lib "shell32" _
(lpbi as T_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

'****************************************************************************************************
'* BrowseFolder :
'* Entrées : - HwndOwner : Handle de la fenêtre appelante
'* - Titre : Titre
'* Sorties :
'* - string contenant le chemin complet ou Chaine vide (si annulation)
'*
'* Affiche une boite de dialogue permettant la sélection d'un répertoire.
'* Renvoie une chaine vide si l'opérateur annule.
'****************************************************************************************************
public Function BrowseFolder(byval HwndOwner as Long, byref Titre as string) as string

Dim lpIDList as Long
Dim sBuffer as string
Dim BrowseInfo as T_BROWSEINFO

'Initialise l'affichage
BrowseFolder = ""
With BrowseInfo
.HwndOwner = HwndOwner
.lpszTitle = lstrcat(Titre, "")
.ulFlags = BIF_RETURNONLYFSDIRS
End With

'Affiche la boite de dialogue
lpIDList = SHBrowseForFolder(BrowseInfo)

'Récupère le répertoire sélectionné
If (lpIDList) then
sBuffer = Space(MAX_PATH)
SHGetPathFromIDList lpIDList, sBuffer
sBuffer = Left(sBuffer, InStr(sBuffer, vbNullChar) - 1)
BrowseFolder = sBuffer
End If
End Function

Download BrowseFolders.Bas

Posted On: 20-Aug-1999

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