VB获取CAD属性值

Dim myAcadApp As AutoCAD.AcadApplication, activeDoc As AutoCAD.AcadDocument, acMS As AutoCAD.AcadModelSpace
    Set myAcadApp = CreateObject("Autocad.Application")
  Set activeDoc = myAcadApp.ActiveDocument

Dim I%
    Dim entry As AcadEntity, blk1 As AcadBlockReference, att1 As AcadAttributeReference
    Dim varAttributes As Variant
    Dim strAttributes As String
    For Each entry In activeDoc.ModelSpace
         If entry.ObjectName = "AcDbBlockReference" Then
          Set blk1 = entry
          if blk1.name="?????" then'你的块名
        　　varAttributes = entry.GetAttributes
          strAttributes = ""
          For I = LBound(varAttributes) To UBound(varAttributes)
            Set att1 = varAttributes(I)
            strAttributes = strAttributes & "标记：" & att1.TagString & "，值：" & att1.TextString & "。"
            '自己想怎么用就怎么用^_^
     　Next
      end if
        End If

    Next