这是老掉牙的SHBrowseForFolder代码，文件夹的名字一长就露马脚了。
ExpertExchange上掏钱买，高达9.8分的代码，也仅仅只能够让你在EditBox中显示完整路径而已。 这才是完美呈现的最后效果。支持Unicode, 遇到特殊字符不会乱码。而且即然不打算让用户生成新文件夹，那编辑窗口也应该屏蔽之。并用它来显示完整的文件路径。有兴趣的可以自己打开Windows7的磁盘管理看看。编辑框屏蔽键盘和修改但支持复制，这才是完全拥有Windows 7特性的文件夹浏览。 
Option Explicit Private Declare Function SHBrowseForFolder Lib "shell32" Alias "SHBrowseForFolderW" (lpbi As BrowseInfo) As Long 'Private Declare Function lstrcat Lib "kernel32" Alias "lstrcatA" (ByVal lpString1 As String, ByVal lpString2 As String) As Long 'Private Declare Function lstrcat Lib "kernel32" Alias "lstrcatW" (ByVal lpString1 As Long, ByVal lpString2 As Long) 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 Private Const BIF_RETURNONLYFSDIRS = &H1 Private Const BIF_DONTGOBELOWDOMAIN = &H2 Private Const BIF_STATUSTEXT = &H4& Private Const BIF_EDITBOX = &H10 Private Const BIF_BROWSEINCLUDEURLS = &H80 Private Const BIF_RETURNFSANCESTORS = &H8 Private Const BIF_VALIDATE = &H20 Private Const BIF_NEWDIALOGSTYLE = &H40 Private Const BIF_USENEWUI = BIF_EDITBOX Or BIF_NEWDIALOGSTYLE Private Const BIF_UAHINT = &H100 Private Const BIF_NONEWFOLDERBUTTON = &H200 Private Const BIF_NOTRANSLATETARGETS = &H400 Private Const BIF_BROWSEFORCOMPUTER = &H1000 Private Const BIF_BROWSEFORPRINTER = &H2000 Private Const BIF_BROWSEINCLUDEFILES = &H4000 Private Const BIF_SHAREABLE = &H8000 Private Const BIF_BROWSEFILEJUNCTIONS = &H10000 Private Function BrowseForFolder(TitleInfo As String) As String Dim lpIDList As Long Dim szTitleInfo() As Byte ' Dim szTitle As String Dim sBuffer As String Dim tBrowseInfo As BrowseInfo ' m_CurrentDirectory = StartDir & vbNullChar szTitleInfo = TitleInfo & vbNullChar ' szTitle = Title With tBrowseInfo .hWndOwner = hwnd .lpszTitle = VarPtr(szTitleInfo(0)) ' .lpszTitle = lstrcat(szTitle, "") 老掉牙的无效指针，淘汰之 ' .ulFlags = BIF_RETURNONLYFSDIRS + BIF_DONTGOBELOWDOMAIN + BIF_STATUSTEXT 旧样式 .ulFlags = BIF_RETURNONLYFSDIRS + BIF_DONTGOBELOWDOMAIN + BIF_USENEWUI + BIF_NONEWFOLDERBUTTON .lpfnCallback = GetAddressofFunction(AddressOf BrowseCallbackProc) 'get address of function. End With lpIDList = SHBrowseForFolder(tBrowseInfo) If (lpIDList) Then sBuffer = Space(MAX_PATH) SHGetPathFromIDList lpIDList, StrPtr（sBuffer） CoTaskMemFree lpIDList '拿了就得还，保持系统干净一点 sBuffer = Left(sBuffer, InStr(sBuffer, vbNullChar) - 1) BrowseForFolder = sBuffer Else BrowseForFolder = "" End If End Function Private Function GetAddressofFunction(Add As Long) As Long GetAddressofFunction = Add End Function Private Sub Command1_Click() Me.Caption = BrowseForFolder("请指定文件夹或驱动器，程序将自动搜索出文件的最新位置") End Sub 在模块中加入下面的代码 Option Explicit Public Declare Function SHGetPathFromIDList Lib "shell32" Alias "SHGetPathFromIDListW" (ByVal pidList As Long, ByVal lpBuffer As Long) As Long Public Declare Sub CoTaskMemFree Lib "ole32.dll" (ByVal hMem As Long) Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long Private Declare Function SendMessageLong Lib "user32" Alias "SendMessageW" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long 'Private Declare Function EnableWindow Lib "user32" (ByVal hwnd As Long, ByVal fEnable As Long) As Long Public Const MAX_PATH = 260& Public Const MAX_PATH_UNICODE = 2 * MAX_PATH - 1 Private Const BFFM_INITIALIZED = 1& Private Const BFFM_SELCHANGED = 2& Private Const WM_USER = &H400 Private Const BFFM_SETSTATUSTEXT = (WM_USER + 100) Private Const BFFM_SETSELECTION = (WM_USER + 102) Private Const WM_SETTEXT = &HC Private Const EM_SETREADONLY = &HCF Private Const EM_NOSETFOCUS = (&H1500 + 7) Private Const WM_KILLFOCUS = &H8 Public Function BrowseCallbackProc(ByVal hwnd As Long, ByVal uMsg As Long, ByVal lParam As Long, ByVal lpData As Long) As Long Dim lpIDList As Long Dim lRet As Long Dim sBuffer As String Dim Fhwnd As Long Dim sysDir As String Dim szPath() As Byte sysDir = Environ("SystemDrive") & "\" On Error GoTo errhandler Select Case uMsg Case BFFM_INITIALIZED Call SendMessage(hwnd, BFFM_SETSELECTION, True, ByVal sysDir) Fhwnd = FindWindowEx(hwnd, 0, "Edit", vbNullString) Call SendMessage(Fhwnd, WM_SETTEXT, 0, ByVal sysDir) ' EnableWindow Fhwnd, 0& Call SendMessage(Fhwnd, EM_SETREADONLY, True, ByVal 0&) Call SendMessage(Fhwnd, EM_NOSETFOCUS, 0&, ByVal 0&) Case BFFM_SELCHANGED sBuffer = Space(MAX_PATH_UNICODE) lRet = SHGetPathFromIDList(lParam, StrPtr(sBuffer)) If lRet = 1 Then ' Call SendMessageT(hwnd, BFFM_SETSTATUSTEXT, 0, sBuffer) Fhwnd = FindWindowEx(hwnd, 0, "Edit", vbNullString) szPath = sBuffer Call SendMessageLong(Fhwnd, WM_SETTEXT, 0, VarPtr(szPath(0))) Call SendMessage(Fhwnd, WM_KILLFOCUS, 0&, ByVal 0&) End If End Select errhandler: BrowseCallbackProc = 0 End Function |
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