代码中引用的 Excel 工作簿在任务栏中无处可见

Question

我正在尝试使用 VBA 从 powerpoint 打开工作簿。虽然工作簿对象正在设置，但工作簿无处可见。 [为了清楚起见，请参阅末尾的快照]

代码：

Public Path As String

Sub CheckThisSub()

  Path = ActivePresentation.Path
  Debug.Print (Path & "\" & "QC_Log.xlsm") 'prints D:\QC\Test\QC_Log.xlsm

  Dim QCWbk As New Excel.Workbook
  Set QCWbk = Excel.Workbooks.Open(Path & "\" & "QC_Log.xlsm")
  'QCWbk is getting set but the excel QC_Log.xlsm is nowhere to be seen.

  Debug.Print QCWbk.Name                   'prints QC_Log.xlsm
  QCWbk.Windows.Item(1).Visible = True

' Rest of code

End sub

快照：

Answer 1

因此，创建一个 Excel 会话可以通过不同的方式完成。

由于您将初始声明从 Dim QCWbk As Excel.Workbook 修改为 Dim QCWbk As New Excel.Workbook，您的代码问题在于您尝试设置 Excel 应用程序的方式。您的代码尝试设置工作簿，而不是 Excel 应用程序。从你的开始的一段工作代码应该是下一个：

Dim QCWbk As New Excel.Workbook, wb as Excel.Workbook, Path As String 'Using New the Excel COM object is already instantiated:

Path = ActivePresentation.Path
Set wb = QCWbk.Workbooks.Open(Path & "\" & "QC_Log.xlsm") 'the workbook is set in this way!
QCWbk.Visible = True

Excel 应用程序无需引用 Excel 库即可轻松创建。这是后期绑定方式，但您无法从提供对象 properties/methods:

Dim QCWbk As Object, wb as Object, Path As String '

Path = ActivePresentation.Path
Set QCWbk = CreateObject("Excel.Application")
QCWbk.Visible = True
Set wb = QCWbk.Workbooks.Open(Path & "\" & "QC_Log.xlsm") 'the workbook is set in this way!

您可以在不预先实例化 COM 对象的情况下使用早期绑定。您受益于 Intellisense 优惠，但您必须在第二步中创建实例：

Dim QCWbk As Excel.Workbook, wb as Excel.Workbook, Path As String 'Using New the Excel COM object is already instantiated:

Path = ActivePresentation.Path
Set QCWbk = CreateObject("Excel.Application")
QCWbk.Visible = True 
Set wb = QCWbk.Workbooks.Open(Path & "\" & "QC_Log.xlsm") 'the workbook is set in this way!

您可以使用下一个代码获取现有的 Excel 打开会话：

Dim QCWbk Excel.Workbook, wb as Excel.Workbook, Path As String

Path = ActivePresentation.Path

On Error Resume Next
 Set QCWbk = GetObject(, "Excel.Application")
 If Err.Number <> 0 Then
     Err.Clear: On Error GoTo 0
     MsgBox "No Excel Open session..."
     Exit Sub 'the code exists if only an open session is required...
 End If
 'Usually in such a case a new session is created (as above). Here is only the part showing how to use an existing session
 Set wb = QCWbk.Workbooks.Open(Path & "\" & "QC_Log.xlsm") 'the workbook is set in this way!
 QCWbk.Visible = True

如果您知道在特定会话中打开的工作簿的名称，则可以找到打开的 Excel 会话...例如，如果另一个应用程序（例如 SAP）导出这样的工作簿（名为"Book1") 在一个新的session中，你可以这样找到那个session：

Dim Ex As Excel.Application
Set Ex = GetObject("Book1").Application

Debug.Print Application.ActiveWindow.hwnd, Ex.ActiveWindow.hwnd

最后，您可以使用API（FindWindowEx、IIDFromString 和AccessibleObjectFromWindow）识别所有Excel 个打开的会话，但它有点复杂，需要在特定情况下使用...

代码中引用的 Excel 工作簿在任务栏中无处可见

Referenced Excel workbook in the code is nowhere to be seen in taskbar

excel

vba

powerpoint