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首页 - 经验之谈 - 使用 WIN95 的选择目录对话框
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使用 WIN95 的选择目录对话框 98-7-05

声明:

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 = 1

Private 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

函数:

Public Function BrowseForFolder(hWndOwner As Long, sPrompt As String) As String


Dim iNull As Integer

Dim lpIDList As Long

Dim lResult As Long

Dim sPath As String

Dim udtBI As BrowseInfo


With udtBI

.hWndOwner = hWndOwner

.lpszTitle = lstrcat(sPrompt, "")

.ulFlags = BIF_RETURNONLYFSDIRS

End With


lpIDList = SHBrowseForFolder(udtBI)

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

End If


BrowseForFolder = sPath


End Function