使用下面的完整代码，它可以完美地保存我选择的电子邮件的附件，本地到我的电脑。虽然，当遇到重复项时，代码会在其末尾创建带有日期戳的副本，否则会导致Outlook 2016崩溃。
更改代码的最佳方法是什么才能跳过重复的代码？我对任何其他建议持开放态度。
以下是完整代码：
Option Explicit
If VBA7 Then
Private lHwnd As LongPtr
Private Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As LongPtr
Else
Private lHwnd As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
End If
' The class name of Outlook window.
Private Const olAppCLSN As String = "rctrl_renwnd32"
' Windows desktop - the virtual folder that is the root of the namespace.
Private Const CSIDL_DESKTOP = &H0
' Only return file system directories. If the user selects folders that are not part of the file system, the OK button is grayed.
Private Const BIF_RETURNONLYFSDIRS = &H1
' Do not include network folders below the domain level in the dialog box's tree view control.
Private Const BIF_DONTGOBELOWDOMAIN = &H2
' The maximum length for a path is 260 characters.
Private Const MAX_PATH = 260
' *****************************************
' *****************************************
Private Function CreateDir(strFolderPath As String)
Dim Elm As Variant
Dim CheckPath As String
CheckPath = ""
For Each Elm In Split(strFolderPath, "\")
CheckPath = CheckPath & Elm & "\"
Debug.Print CheckPath & " Folder Exist"
If Len(Dir(CheckPath, vbDirectory)) = 0 Then
MkDir CheckPath
Debug.Print CheckPath & " Folder Created"
End If
Next
End Function
' *****************************************
' *****************************************
' Returns the number of attachements in the selection.
Public Function SaveAttachmentsFromSelection() As Long
Dim objFSO As Object ' Computer's file system object.
Dim objShell As Object ' Windows Shell application object.
Dim objFolder As Object ' The selected folder object from Browse for Folder dialog box.
Dim objItem As Object ' A specific member of a Collection object either by position or by key.
Dim selItems As Selection ' A collection of Outlook item objects in a folder.
Dim atmt As Attachment ' A document or link to a document contained in an Outlook item.
Dim strAtmtPath As String ' The full saving path of the attachment.
Dim strAtmtFullName As String ' The full name of an attachment.
Dim strAtmtName(1) As String ' strAtmtName(0): to save the name; strAtmtName(1): to save the file extension. They are separated by dot of an attachment file name.
Dim strAtmtNameTemp As String ' To save a temporary attachment file name.
Dim intDotPosition As Integer ' The dot position in an attachment name.
Dim atmts As Attachments ' A set of Attachment objects that represent the attachments in an Outlook item.
Dim lCountEachItem As Long ' The number of attachments in each Outlook item.
Dim lCountAllItems As Long ' The number of attachments in all Outlook items.
Dim strFolderPath As String ' The selected folder path.
Dim blnIsEnd As Boolean ' End all code execution.
Dim blnIsSave As Boolean ' Consider if it is need to save.
blnIsEnd = False
blnIsSave = False
lCountAllItems = 0
On Error Resume Next
Set selItems = ActiveExplorer.Selection
If Err.Number = 0 Then
' Get the handle of Outlook window.
lHwnd = FindWindow(olAppCLSN, vbNullString)
If lHwnd <> 0 Then
' /* Create a Shell application object to pop-up BrowseForFolder dialog box. */
Set objShell = CreateObject("Shell.Application")
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFolder = objShell.BrowseForFolder(lHwnd, "Select folder to save attachments:", _
BIF_RETURNONLYFSDIRS + BIF_DONTGOBELOWDOMAIN, CSIDL_DESKTOP)
' /* Failed to create the Shell application. */
If Err.Number <> 0 Then
MsgBox "Run-time error '" & CStr(Err.Number) & " (0x" & CStr(Hex(Err.Number)) & ")':" & vbNewLine & _
Err.Description & ".", vbCritical, "Error from Attachment Saver"
blnIsEnd = True
GoTo PROC_EXIT
End If
If objFolder Is Nothing Then
strFolderPath = ""
blnIsEnd = True
GoTo PROC_EXIT
Else
strFolderPath = CGPath(objFolder.Self.Path)
' /* Go through each item in the selection. */
For Each objItem In selItems
Dim ResetPath As String
ResetPath = strFolderPath
strFolderPath = strFolderPath & objItem.SenderName & "_" & _
Format(objItem.ReceivedTime, "MM-DD-YYYY")
CreateDir strFolderPath
lCountEachItem = objItem.Attachments.Count
' /* If the current item contains attachments. */
If lCountEachItem > 0 Then
Set atmts = objItem.Attachments
' /* Go through each attachment in the current item. */
For Each atmt In atmts
' Get the full name of the current attachment.
strAtmtFullName = atmt.FileName
' Find the dot postion in atmtFullName.
intDotPosition = InStrRev(strAtmtFullName, ".")
' Get the name.
strAtmtName(0) = Left$(strAtmtFullName, intDotPosition - 1)
' Get the file extension.
strAtmtName(1) = Right$(strAtmtFullName, Len(strAtmtFullName) - intDotPosition)
' Get the full saving path of the current attachment.
strAtmtPath = strFolderPath & "\" & atmt.FileName
' /* If the length of the saving path is not larger than 260 characters.*/
If Len(strAtmtPath) <= MAX_PATH Then
' True: This attachment can be saved.
blnIsSave = True
' /* Loop until getting the file name which does not exist in the folder. */
Do While objFSO.FileExists(strAtmtPath)
strAtmtNameTemp = strAtmtName(0) & _
Format(Now, "_mm-dd-yyyy")
strAtmtPath = strFolderPath & strAtmtNameTemp & "." & strAtmtName(1)
' /* If the length of the saving path is over 260 characters.*/
If Len(strAtmtPath) > MAX_PATH Then
lCountEachItem = lCountEachItem - 1
' False: This attachment cannot be saved.
blnIsSave = False
Exit Do
End If
Loop
' /* Save the current attachment if it is a valid file name. */
If blnIsSave Then atmt.SaveAsFile strAtmtPath
Else
lCountEachItem = lCountEachItem - 1
End If
Next
End If
' Count the number of attachments in all Outlook items.
lCountAllItems = lCountAllItems + lCountEachItem
strFolderPath = ResetPath ' reset
Next
End If
Else
MsgBox "Failed to get the handle of Outlook window!", vbCritical, "Error from Attachment Saver"
blnIsEnd = True
GoTo PROC_EXIT
End If
' /* For run-time error:
' The Explorer has been closed and cannot be used for further operations.
' Review your code and restart Outlook. */
Else
MsgBox "Please select an Outlook item at least.", vbExclamation, "Message from Attachment Saver"
blnIsEnd = True
End If
PROC_EXIT:
SaveAttachmentsFromSelection = lCountAllItems
' /* Release memory. */
If Not (objFSO Is Nothing) Then Set objFSO = Nothing
If Not (objItem Is Nothing) Then Set objItem = Nothing
If Not (selItems Is Nothing) Then Set selItems = Nothing
If Not (atmt Is Nothing) Then Set atmt = Nothing
If Not (atmts Is Nothing) Then Set atmts = Nothing
' /* End all code execution if the value of blnIsEnd is True. */
If blnIsEnd Then End
End Function
' Convert general path.
Public Function CGPath(ByVal Path As String) As String
If Right(Path, 1) <> "\" Then Path = Path & "\"
CGPath = Path
End Function
' Run this macro for saving attachments.
Public Sub ExecuteSaving()
Dim lNum As Long
lNum = SaveAttachmentsFromSelection
If lNum > 0 Then
MsgBox CStr(lNum) & " attachment(s) was(were) saved successfully.", vbInformation, "Message from Attachment Saver"
Else
MsgBox "No attachment(s) in the selected Outlook items.", vbInformation, "Message from Attachment Saver"
End If
End Sub
答案 0 :(得分：0)
您可以使用Dir函数查看文件是否存在：
If Dir(fullfilename) <> "" then
'put your code to process here
End If