64位VBA下如何通过API实现调用打开和另存为对话框
各位大侠,最近安装了Autocad 2018的VBA-64位模块,在利用VBA编程时发现缺少了Common Dialog控件,通过在网上学习得知此种情况下可以通过API实现调用相应对话框,但我通过下述代码调用时总是没有反应,请问这是怎么回事?谢谢
Option Explicit
Public Declare PtrSafe Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA" (pOPENFILENAME As OPENFILENAME) As Long
Public Declare PtrSafe Function GetSaveFileName Lib "comdlg32.dll" Alias "GetSaveFileNameA" (pOPENFILENAME As OPENFILENAME) As Long
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 Const OFN_OVERWRITEPROMPT = &H2
Public Const OFN_HIDEREADONLY = &H4
Public Const OFN_PATHMUSTEXIST = &H800
Public Const OFN_FILEMUSTEXIST = &H1000
'
Public Function GetDialog(ByVal sMethod As String, ByVal sTitle As String, ByVal sFileName As String) As String
On Error GoTo myError
Dim rtn As Long, pos As Integer
Dim file As OPENFILENAME
file.lStructSize = Len(file)
'file.hInstance = Application.hInstance
file.hInstance = 0&
file.lpstrFile = sFileName & String$(255 - Len(sFileName), 0)
file.nMaxFile = 255
file.lpstrFileTitle = String$(255, 0)
file.nMaxFileTitle = 255
file.lpstrInitialDir = ""
file.lpstrFilter = "xls文件(*.xls)" '这个为xls文件
file.lpstrTitle = sTitle
If UCase(sMethod) = "OPEN" Then
file.flags = OFN_HIDEREADONLY + OFN_PATHMUSTEXIST + OFN_FILEMUSTEXIST
rtn = GetOpenFileName(file)
Else
file.lpstrDefExt = "exe"
file.flags = OFN_HIDEREADONLY + OFN_PATHMUSTEXIST + OFN_OVERWRITEPROMPT
rtn = GetSaveFileName(file)
End If
If rtn > 0 Then
pos = InStr(file.lpstrFile, Chr$(0))
If pos > 0 Then
GetDialog = Left$(file.lpstrFile, pos - 1)
End If
End If
Exit Function
myError:
MsgBox "操作失败!", vbCritical + vbOKOnly
End Function
调用程序为:
Private Sub CommandButton1_Click()
TextBox1.Text = GetDialog("open", "打开文件", "1.xls")
End Sub
Private Sub CommandButton2_Click()
TextBox2.Text = GetDialog("save", "保存文件", "1.xls")
End Sub