怎样自动引用DLL？

zhengjialon

若要试用该示例，请先新建一个类模块，方法是：单击“插入”菜单中的“类模块”，然后将下列代码粘贴到类模块中，并将模块保存为 RefEvents：

' Declare object variable to represent References collection.
Public WithEvents evtReferences As References

' When instance of class is created, initialize evtReferences
' variable.
Private Sub Class_Initialize()
    Set evtReferences = Application.References
End Sub

' When instance is removed, set evtReferences to Nothing.
Private Sub Class_Terminate()
    Set evtReferences = Nothing
End Sub

' Display message when reference is added.
Private Sub evtReferences_ItemAdded(ByVal Reference As _
        Access.Reference)
    MsgBox "Reference to " & Reference.Name & " added."
End Sub

' Display message when reference is removed.
Private Sub evtReferences_ItemRemoved(ByVal Reference As _
        Access.Reference)
    MsgBox "Reference to " & Reference.Name & " removed."
End Sub
以下的 Function 过程可用来添加一个特定的引用。在添加引用时，将执行 RefEvents 类中定义的 ItemAdded 事件过程。

例如，若要将引用设为日历控件，可以传递“C:\Windows\System\Mscal.ocx”字符串（只要该字符串是日历控件在计算机上的正确位置）。

' Create new instance of RefEvents class.
Dim objRefEvents As New RefEvents

' Pass file name and path of type library to this procedure.
Function AddReference(strFileName As String) As Boolean
    Dim ref As Reference

    On Error GoTo Error_AddReference
    ' Create new reference on References object variable.
    Set ref = objRefEvents.evtReferences.AddFromFile(strFileName)
    AddReference = True

Exit_AddReference:
    Exit Function

Error_AddReference:
    MsgBox Err & ": " & Err.Description
    AddReference = False
    Resume Exit_AddReference
End Function