by Ziad Mohammad (1 Submission)
Category: Windows API Call/Explanation
Compatability: Visual Basic 3.0
Difficulty: Advanced
Date Added: Wed 3rd February 2021
Rating: 
(12 Votes)
Have ever wondered if there is an ActiveX object that make you browse for a folder. This API functions calls make the browse dialog
Inputs
Start a new Project and Add a command button on the form named command1
Assumes
This API function calls display the structure of your computer and allow the use to select a folder
API DeclarationsPrivate Const BIF_RETURNONLYFSDIRS = 1
Private Const BIF_DONTGOBELOWDOMAIN = 2
Private Const BIF_BROWSEFORCOMPUTER = &H1000
Private Const MAX_PATH = 260
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
VBcodersPrivate Sub Command1_Click()
'Opens a Treeview control that displays the directories in a computer
Dim lpIDList As Long
Dim sBuffer As String
Dim szTitle As String
Dim tBrowseInfo As BrowseInfo
szTitle = "This is the title"
With tBrowseInfo
.hWndOwner = Me.hWnd
.lpszTitle = lstrcat(szTitle, "")
.ulFlags = BIF_RETURNONLYFSDIRS_
+BIF_DONTGOBELOWDOMAIN
End With
lpIDList = SHBrowseForFolder(tBrowseInfo)
If (lpIDList) Then
sBuffer = Space(MAX_PATH)
SHGetPathFromIDList lpIDList, sBuffer
sBuffer = Left(sBuffer, InStr
(sBuffer, vbNullChar) - 1)
MsgBox sBuffer
End If
End Sub
