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صنم
سه شنبه 18 مرداد 1384, 07:51 صبح
سلام
من می خوام به کاربرم اجازه بدم که مسیری رو انتخاب کنه آیا توی vb همچین کامپوننتی رو داره که کلیه درایوها و فلدرها و فایلهای داخل درایوها را نشان بده .

PalizeSoftware
سه شنبه 18 مرداد 1384, 08:10 صبح
چند تا راه داری:
1- CommonDialog
2- استفاده از اشیائ FileListBox,DirListBox, DriveListBox
3- با استفاده از توابع API نظیر مثال زیر:



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
Const BIF_RETURNONLYFSDIRS = 1
Const MAX_PATH = 260
Private Declare Sub CoTaskMemFree Lib "ole32.dll" (ByVal hMem As Long)
Private Declare Function lstrcat Lib "kernel32" _
Alias "lstrcatA" (ByVal lpString1 As String, ByVal lpString2 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 Sub Form_Load()
Dim iNull As Integer, lpIDList As Long, lResult As Long
Dim sPath As String, udtBI As BrowseInfo

With udtBI
'Set the owner window
.hWndOwner = Me.hWnd
'lstrcat appends the two strings and returns the memory address
.lpszTitle = lstrcat("C:\", "")
'Return only if the user selected a directory
.ulFlags = BIF_RETURNONLYFSDIRS
End With

'Show the 'Browse for folder' dialog
lpIDList = SHBrowseForFolder(udtBI)
If lpIDList Then
sPath = String$(MAX_PATH, 0)
'Get the path from the IDList
SHGetPathFromIDList lpIDList, sPath
'free the block of memory
CoTaskMemFree lpIDList
iNull = InStr(sPath, vbNullChar)
If iNull Then
sPath = Left$(sPath, iNull - 1)
End If
End If

MsgBox sPath
End Sub