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Thread: CommonDialog Properties

  1. #1

    Thread Starter
    Hyperactive Member vbzero's Avatar
    Join Date
    Aug 2000
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    Vienna
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    347

    Question

    Does anybody know if it's possible to select only
    a folder in the commondialog object?
    By default you can only select files or even shortcuts.
    When you set the flags for that object you can do
    much but when you select a folder on your harddrive
    it will be opened and not selected.

    I need to open the commondialog box and choose a folder which is needed for some routines in my application.

    I don't want to use a DirListBox for that because it
    doesn't support the windows default dialog for selecting
    directories.

    Any suggestions?

  2. #2
    Guest
    This will allow you to select only folders:

    Code:
    Option Explicit 
    
    Public 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 
    
    Public Const BIF_RETURNONLYFSDIRS = 1 
    Public Const MAX_PATH = 260 
    
    Public Declare Sub CoTaskMemFree Lib "ole32.dll" (ByVal hMem As Long) 
    Public Declare Function lstrcat Lib "kernel32" Alias "lstrcatA" (ByVal lpString1 As String, ByVal lpString2 As String) As Long 
    Public Declare Function SHBrowseForFolder Lib "shell32" (lpbi As BrowseInfo) As Long 
    Public Declare Function SHGetPathFromIDList Lib "shell32" (ByVal pidList As Long, ByVal lpBuffer As String) As Long 
    
    Public Function BrowseForFolder(hwndOwner As Long, sPrompt As String) As String
         
        'declare variables to be used
         Dim iNull As Integer
         Dim lpIDList As Long
         Dim lResult As Long
         Dim sPath As String
         Dim udtBI As BrowseInfo
    
        'initialise variables
         With udtBI
            .hwndOwner = hwndOwner
            .lpszTitle = lstrcat(sPrompt, "")
            .ulFlags = BIF_RETURNONLYFSDIRS
         End With
    
        'Call the browse for folder API
         lpIDList = SHBrowseForFolder(udtBI)
         
        'get the resulting string path
         If lpIDList Then
            sPath = String$(MAX_PATH, 0)
            lResult = SHGetPathFromIDList(lpIDList, sPath)
            Call CoTaskMemFree(lpIDList)
            iNull = InStr(sPath, vbNullChar)
            If iNull Then sPath = Left$(sPath, iNull - 1)
         End If
    
        'If cancel was pressed, sPath = ""
         BrowseForFolder = sPath
    
    End Function
    
    
    Private Sub Command1_Click() 
    Dim strResFolder As String 
    strResFolder = BrowseForFolder(hWnd, "Please select a folder.") 
    If strResFolder = "" Then 
    Call MsgBox("The Cancel button was pressed.", vbExclamation) 
    Else 
    Call MsgBox("The folder " & strResFolder & " was selected.", vbExclamation) 
    End If 
    End Sub

  3. #3

    Thread Starter
    Hyperactive Member vbzero's Avatar
    Join Date
    Aug 2000
    Location
    Vienna
    Posts
    347

    Thumbs up

    Thank you! It really helped!

    thx, vbzero

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