'在窗口上画一个List1和一个Command1按钮
'新建一个模块，代码如下：
Option Explicit
Public Type OPENFILENAME
lStructSize As Long
hwndOwner As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilter As String
nMaxCustFilter As Long
nFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustData As Long
lpfnHook As Long
lpTemplateName As String
End Type
Public Declare Function GetOpenFileName Lib “comdlg32.dll” Alias “GetOpenFileNameA” (pOpenfilename As OPENFILENAME) As Long
Public sFileName() As String '用于打开文件时的数组

Function OpenFiles(ByVal hwnd As Long, ByVal sTitle As String, ByVal sStyle As String, ByVal uFlag As Long, Optional lMaxFileNum As Long) As String
'说明：
'hwnd 指窗体的HWND值
'sTitle 指对话框的标题
'sTytle 指打开文件的格式，如：.exe或者.*，多个可以使用分号隔离
'uFlag 指是否可以选择多个文件，1可以，其他就只能选一个
'lMaxFileNum 文件个数，长度的数值，一般是255，如果文件多，可以使用65535
Dim ofn As OPENFILENAME
Const OFN_ALLOWMULTISELECT = &H200
Const OFN_EXPLORER = &H80000
Const OFN_FILEMUSTEXIST = &H1000
If Len(Trim(Str(lMaxFileNum))) = 0 Then lMaxFileNum = 255
uFlag = IIf(uFlag = 1, OFN_ALLOWMULTISELECT Or OFN_EXPLORER Or OFN_FILEMUSTEXIST, OFN_EXPLORER Or OFN_FILEMUSTEXIST)
With ofn
.lStructSize = Len(ofn)
.hwndOwner = hwnd
.hInstance = App.hInstance
.lpstrFile = Space(lMaxFileNum−1).nMaxFile=lMaxFileNum.lpstrFileTitle=Space(lMaxFileNum - 1) .nMaxFile = lMaxFileNum .lpstrFileTitle = Space(lMaxFileNum−1).nMaxFile=lMaxFileNum.lpstrFileTitle=Space(lMaxFileNum - 1)
.nMaxFileTitle = lMaxFileNum
.lpstrTitle = sTitle
.lpstrFilter = “All Surported Files” + Chr(0)+sStyle+Chr(0) + sStyle + Chr(0)+sStyle+Chr(0)
.flags = uFlag
End With
Dim lRet As Long
lRet = GetOpenFileName(ofn)
OpenFiles = IIf(lRet > 0, ofn.lpstrFile, “”)
End Function

Function GetFileNames(ByVal tmpString As String) As Integer
Dim FileNames() As String
FileNames() = Split(tmpString, vbNullChar)
If UBound(FileNames()) < 3 Then
ReDim sFileName(0)
sFileName(0) = FileNames(0) '如果只是选了一个
GetFileNames = 0
Else
Dim m As Integer
GetFileNames = UBound(FileNames) - 3
ReDim sFileName(0 To GetFileNames)
For m = 0 To GetFileNames
sFileName(m) = IIf(Right(FileNames(0), 1) = “”, FileNames(0) + FileNames(m + 1), FileNames(0) + “” + FileNames(m + 1))
Next
End If
End Function
'- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
'窗体调用函数
Private Sub Main()
Dim tString As String, iFileNum As Integer, i As Integer
tString = OpenFiles(0, “打开”, “.”, 1, 255)
If tString = “” Then Exit Sub
iFileNum = GetFileNames(tString)
For i = 0 To iFileNum
List1.AddItem sFileName(i)
Next
End Sub

Private Sub Command1_Click()
Call Main
End Sub