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我的代码有问题，我不知道出了什么问题以及如何解决它。我正在使用 Access 2007。我有以下函数 ExecCmd，其目的是执行参数中的 cmdline，并等到执行完成后将控制权交还给 Access。当我调用此函数时，它返回 2 而不是 0 的退出代码，并且我要执行的批处理文件未执行。

Private Type STARTUPINFO
      cb As Long
      lpReserved As String
      lpDesktop As String
      lpTitle As String
      dwX As Long
      dwY As Long
      dwXSize As Long
      dwYSize As Long
      dwXCountChars As Long
      dwYCountChars As Long
      dwFillAttribute As Long
      dwFlags As Long
      wShowWindow As Integer
      cbReserved2 As Integer
      lpReserved2 As Long
      hStdInput As Long
      hStdOutput As Long
      hStdError As Long
   End Type

   Private Type PROCESS_INFORMATION
      hProcess As Long
      hThread As Long
      dwProcessID As Long
      dwThreadID As Long
   End Type

   Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal _
      hHandle As Long, ByVal dwMilliseconds As Long) As Long

   Private Declare Function CreateProcessA Lib "kernel32" (ByVal _
      lpApplicationName As String, ByVal lpCommandLine As String, ByVal _
      lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, _
      ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, _
      ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As String, _
      lpStartupInfo As STARTUPINFO, lpProcessInformation As _
      PROCESS_INFORMATION) As Long

   Private Declare Function CloseHandle Lib "kernel32" _
      (ByVal hObject As Long) As Long

   Private Declare Function GetExitCodeProcess Lib "kernel32" _
      (ByVal hProcess As Long, lpExitCode As Long) As Long

   Private Const NORMAL_PRIORITY_CLASS = &H20&
   Private Const INFINITE = -1&
   Private Const SW_HIDE = 0
   Private Const STARTF_USESHOWWINDOW = &H1

   Public Function ExecCmd(cmdline$)

      Dim proc As PROCESS_INFORMATION
      Dim start As STARTUPINFO
      Dim Ret&
      ' Initialize the STARTUPINFO structure:
      start.cb = Len(start)
      start.dwFlags = STARTF_USESHOWWINDOW
      start.wShowWindow = SW_HIDE
      ' Start the shelled application:
      Ret& = CreateProcessA(vbNullString, cmdline$, 0&, 0&, 1&, _
         NORMAL_PRIORITY_CLASS, 0&, vbNullString, start, proc)

      ' Wait for the shelled application to finish:
         Ret& = WaitForSingleObject(proc.hProcess, INFINITE)
         Call GetExitCodeProcess(proc.hProcess, Ret&)
         Call CloseHandle(proc.hThread)
         Call CloseHandle(proc.hProcess)
         ExecCmd = Ret&
   End Function

真正奇怪的是，如果我在调用 ExecCmd 之前调用以下函数 OuvrirUnFichier 一切正常。

   ' Déclaration de l'API
Private Declare Sub PathStripPath Lib "shlwapi.dll" Alias "PathStripPathA" (ByVal pszPath As String)
Private Declare Function GetOpenFileName Lib "comdlg32.dll" Alias _
                   "GetOpenFileNameA" (pOpenfilename As OPENFILENAME) As Long
 ' Structure du fichier
Private 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
 ' Constantes
Private Const OFN_READONLY = &H1
Private Const OFN_OVERWRITEPROMPT = &H2
Private Const OFN_HIDEREADONLY = &H4
Private Const OFN_NOCHANGEDIR = &H8
Private Const OFN_SHOWHELP = &H10
Private Const OFN_ENABLEHOOK = &H20
Private Const OFN_ENABLETEMPLATE = &H40
Private Const OFN_ENABLETEMPLATEHANDLE = &H80
Private Const OFN_NOVALIDATE = &H100
Private Const OFN_ALLOWMULTISELECT = &H200
Private Const OFN_EXTENSIONDIFFERENT = &H400
Private Const OFN_PATHMUSTEXIST = &H800
Private Const OFN_FILEMUSTEXIST = &H1000
Private Const OFN_CREATEPROMPT = &H2000
Private Const OFN_SHAREAWARE = &H4000
Private Const OFN_NOREADONLYRETURN = &H8000
Private Const OFN_NOTESTFILECREATE = &H10000

Private Const OFN_SHAREFALLTHROUGH = 2
Private Const OFN_SHARENOWARN = 1
Private Const OFN_SHAREWARN = 0

Public Function OuvrirUnFichier(Handle As Long, _
                                titre As String, _
                                TypeRetour As Byte, _
                                Optional TitreFiltre As String, _
                                Optional TypeFichier As String, _
                                Optional RepParDefaut As String) As String
 ' OuvrirUnFichier est la fonction à utiliser dans votre formulaire pour ouvrir _
 ' la boîte de dialogue de sélection d'un fichier.
 ' Explication des paramètres
    ' Handle = le handle de la fenêtre
    ' Titre = titre de la boîte de dialogue
    ' TypeRetour (définit la valeur, de type String, renvoyée par la fonction)
        ' 1 = chemin complet + nom du fichier
        ' 2 = nom fichier seulement
    ' TitreFiltre = titre du filtre
        ' Exemple: fichier Access
        ' N'utilisez pas cet argument si vous ne voulez spécifier aucun filtre
    ' TypeFichier = extention du fichier (sans le .)
        ' Exemple: MDB
        ' N'utilisez pas cet argument si vous ne voulez spécifier aucun filtre
    ' RepParDefaut = répertoire d'ouverture par défaut
        ' Exemple: C:\windows\system32
        ' Si vous laissez l'argument vide, par défaut il se place dans le répertoire de votre application

Dim StructFile As OPENFILENAME
Dim sFiltre As String

 ' Construction du filtre en fonction des arguments spécifiés
If Len(TitreFiltre) > 0 And Len(TypeFichier) > 0 Then
  sFiltre = TitreFiltre & " (" & TypeFichier & ")" & Chr$(0) & "*." & TypeFichier & Chr$(0)
End If
sFiltre = sFiltre & "Tous (*.*)" & Chr$(0) & "*.*" & Chr$(0)

 ' Configuration de la boîte de dialogue
  With StructFile
    .lStructSize = Len(StructFile) ' Initialisation de la grosseur de la structure
    .hwndOwner = Handle ' Identification du handle de la fenêtre
    .lpstrFilter = sFiltre ' Application du filtre
    .lpstrFile = String$(254, vbNullChar) ' Initialisation du fichier '0' x 254
    .nMaxFile = 254 ' Taille maximale du fichier
    .lpstrFileTitle = String$(254, vbNullChar) ' Initialisation du nom du fichier '0' x 254
    .nMaxFileTitle = 254  ' Taille maximale du nom du fichier
    .lpstrTitle = titre ' Titre de la boîte de dialogue
    .flags = OFN_HIDEREADONLY  ' Option de la boite de dialogue
    If ((IsNull(RepParDefaut)) Or (RepParDefaut = "")) Then
        RepParDefaut = CurrentDb.Name
        PathStripPath (RepParDefaut)
        .lpstrInitialDir = Left(CurrentDb.Name, Len(CurrentDb.Name) - Len(Mid$(RepParDefaut, 1, _
InStr(1, RepParDefaut, vbNullChar) - 1)))
        Else: .lpstrInitialDir = RepParDefaut
    End If
  End With
If (GetOpenFileName(StructFile)) Then ' Si un fichier est sélectionné
    Select Case TypeRetour
      Case 1: OuvrirUnFichier = Trim$(Left(StructFile.lpstrFile, InStr(1, StructFile.lpstrFile, vbNullChar) - 1))
      Case 2: OuvrirUnFichier = Trim$(Left(StructFile.lpstrFileTitle, InStr(1, StructFile.lpstrFileTitle, vbNullChar) - 1))
    End Select
  End If
End Function

有谁知道问题出在哪里？发生了什么或如何解决？是什么让 OuvrirUnFichier 解决了这个问题？非常感谢

我尝试使用 calc.exe 并且确实有效，但我想做的是执行我使用此代码创建的批处理文件：

Open vPath & "\FtpComm.txt" For Output As fNum
Connexion (fNum) 'function that prints lines to connect to FTP server
Print #fNum, "put " & vFile & " Temp.mdb" 'upload local filename to server file 
Deconnexion (fNum) 'function that prints lines to disconnect from FTP server
Close fNum
Open vPath & "\doFtp.bat" For Output As batFileHandle
Print #batFileHandle, "ftp -s:FtpComm.txt >output.txt" '
Close batFileHandle

RetVal = ExecCmd(vPath & "\doFtp.bat")

.bat 文件已正确创建，如果我手动单击它，它会执行并在使用 ExecCmd 执行它时执行我想要的操作，但它不会

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2 回答 2

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I found the solution to my problem. Access had troubles knowing where to look for the files I created. The function OuvrirUnFichier allowed him to be in the right directory and thus to function properly. I changed the code to create the .txt and .bat files into this:

 Open vPath & "\FtpComm.txt" For Output As fNum
Connexion (fNum)
Print #fNum, "get " & Fichier & " " & vPath & "\Temp.mdb" 'upload local filename to server file  : LocalFile [RemoteFile] LocalFile
Deconnexion (fNum)
Close fNum
Open vPath & "\doFtp.bat" For Output As batFileHandle
Print #batFileHandle, "ftp -s:" & vPath & "\FtpComm.txt >" & vPath & "\output.txt" 'execute le fichier batch et écrit les output dans le fichier output
Close batFileHandle
RetVal = ExecCmd(vPath & "\doFtp.bat")

And it now works perfectly! :D

于 2013-03-16T15:26:47.787 回答
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我尝试ExecCmd()在 32 位 Vista 上使用带有 Access_2010 的函数来运行一个简单的“Hello world”批处理文件，但它所做的只是挂起 Access（即使我使用了cmd.exe /c hello.bat. 对于您的特殊要求，我认为使用以下Run方法会更好地为您服务Wscript.Shell：

Public Function myExecCmd(cmdstr As String) As Long
Dim wsh As Object
Set wsh = CreateObject("Wscript.Shell")
myExecCmd = wsh.Run(cmdstr, 1, True)
End Function

此外，您的原始方法在 64 位 Access 上无法“开箱即用”（因为 32 位 API 调用），但这种方法在 32 位和 64 位版本的 Access 下都可以正常工作. 有关该Run方法的更多信息，请查看此处。

于 2013-03-15T16:36:49.943 回答