VBA Shell和退出代码等待

看一看 WaitForSingleObject 和 GetExitCodeProcess 功能。

示例用法:

Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function FormatMessage Lib "kernel32" Alias "FormatMessageA" (ByVal dwFlags As Long, lpSource As Any, ByVal dwMessageId As Long, ByVal dwLanguageId As Long, ByVal lpBuffer As String, ByVal nSize As Long, Arguments As Long) As Long

Public Const INFINITE = &HFFFF
Public Const PROCESS_ALL_ACCESS = &H1F0FFF

Sub RunApplication(ByVal Cmd as String)

    lTaskID = Shell(Cmd, vbNormalFocus)
    ' Get process handle
    lPID = OpenProcess(PROCESS_ALL_ACCESS, True, lTaskID)
    If lPID Then
        ' Wait for process to finish
        Call WaitForSingleObject(lPID, INFINITE)
        ' Get Exit Process
        If GetExitCodeProcess(lPID, lExitCode) Then
            ' Received value
            MsgBox "Successfully returned " & lExitCode, vbInformation
        Else
            MsgBox "Failed: " & DLLErrorText(Err.LastDllError), vbCritical
        End If
    Else
        MsgBox "Failed: " & DLLErrorText(Err.LastDllError), vbCritical
    End If
    lTaskID = CloseHandle(lPID)
End Sub

Public Function DLLErrorText(ByVal lLastDLLError As Long) As String
    Dim sBuff As String * 256
    Dim lCount As Long
    Const FORMAT_MESSAGE_ALLOCATE_BUFFER = &H100, FORMAT_MESSAGE_ARGUMENT_ARRAY = &H2000
    Const FORMAT_MESSAGE_FROM_HMODULE = &H800, FORMAT_MESSAGE_FROM_STRING = &H400
    Const FORMAT_MESSAGE_FROM_SYSTEM = &H1000, FORMAT_MESSAGE_IGNORE_INSERTS = &H200
    Const FORMAT_MESSAGE_MAX_WIDTH_MASK = &HFF

    lCount = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM Or FORMAT_MESSAGE_IGNORE_INSERTS, 0, lLastDLLError, 0&, sBuff, Len(sBuff), ByVal 0)
    If lCount Then
        DLLErrorText = Left$(sBuff, lCount - 2) ' Remove line feeds
    End If

End Function

此功能已包含在 ShellAndWait

写得很好 here .