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Oct 20th, 2000, 02:49 PM
#1
Thread Starter
Frenzied Member
I want to pick a folder
with command dialog.
Not a FILE. How do you
do that?
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Oct 20th, 2000, 02:58 PM
#2
Code:
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
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Oct 20th, 2000, 02:58 PM
#3
transcendental analytic
You can't, but you can use this piece of code:
Code:
Option Explicit
Private Const MAX_PATH = 260
Public Enum browseInfoFlags
BIF_NONE = 0 ' No Flags
BIF_RETURNONLYFSDIRS = &H1& ' For finding a folder to start document searching
BIF_DONTGOBELOWDOMAIN = &H2& ' For starting the Find Computer
BIF_STATUSTEXT = &H4&
BIF_RETURNFSANCESTORS = &H8&
BIF_EDITBOX = &H10&
BIF_VALIDATE = &H20& ' insist on valid result (or CANCEL)
BIF_BROWSEFORCOMPUTER = &H1000& ' Browsing for Computers.
BIF_BROWSEFORPRINTER = &H2000& ' Browsing for Printers
BIF_BROWSEINCLUDEFILES = &H4000& ' Browsing for Everything
End Enum
Private Type BROWSEINFO
hWndOwner As Long
pidlRoot As Long
pszDisplayName As String
lpszTitle As String
ulFlags As browseInfoFlags
lpfn As Long
lParam As Long
iImage As Long
End Type
' for SHGetPathFromIDList, pszString must be at least MAX_PATH (260) chars
Private Declare Function SHBrowseForFolder Lib "shell32" Alias "SHBrowseForFolderA" (lpbi As BROWSEINFO) As Long
Private Declare Function SHGetPathFromIDList Lib "shell32" (ByVal pidl As Long, ByVal pszPath As String) As Long
Private Declare Sub CoTaskMemFree Lib "ole32" (ByVal ptr As Long)
' BrowseForFolder() returns a path if the user picks a good one, or "" if they don't.
Public Function BrowseForFolder(ByVal hWndOwner As Long, Optional ByVal dlgTitle$ = "Please select a folder.", Optional ByVal flags As browseInfoFlags = BIF_RETURNONLYFSDIRS) As String
Dim bif As BROWSEINFO, pidl As Long, buf$
With bif
.hWndOwner = hWndOwner
.pidlRoot = 0 ' desktawp
.pszDisplayName = Space$(MAX_PATH)
.lpszTitle = dlgTitle$
.ulFlags = flags
.lpfn = 0&
.lParam = 0&
.iImage = 0&
End With
pidl = SHBrowseForFolder(bif)
If (pidl = 0) Then Exit Function
buf$ = Space$(MAX_PATH)
If (SHGetPathFromIDList(pidl, buf$) = 0) Then
buf$ = ""
Else
buf$ = Left$(buf$, InStr(1, buf$, vbNullChar) - 1)
End If
CoTaskMemFree pidl
BrowseForFolder = buf$
End Function
Use  
writing software in C++ is like driving rivets into steel beam with a toothpick.
writing haskell makes your life easier:
reverse (p (6*9)) where p x|x==0=""|True=chr (48+z): p y where (y,z)=divMod x 13
To throw away OOP for low level languages is myopia, to keep OOP is hyperopia. To throw away OOP for a high level language is insight.
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Oct 20th, 2000, 03:01 PM
#4
Thread Starter
Frenzied Member
Matthew you are awsome! 
Thanks Alot!
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