CAD得到ImageMark数据（com接口VB语言）

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Private Sub MxDrawX1_CustomEvent(ByVal sEventName As String)        If sEventName = "ObjectGripEdit" Then            Dim eventParam As MxDrawXLib.MxDrawResbuf            ' 得到事件参数            Set eventParam = MxDrawX1.CustomEventParam              Dim lId As Long            ' 得到夹点被编辑的对象id            lId = eventParam.AtLong(0)              '查看对象是否是ImageMark对象，并返回对象数据。              Dim data As MxDrawXLib.MxDrawResbuf              Set data = MxDrawX1.CallLongParam1("Mx_GetImageMarkData", lId)            If data.AtString(0) = "Ok" Then          ' 得到Mark对象的文件名.            MsgBox (data.AtString(1))        '插入点x            MsgBox (data.AtDouble(2))        '插入点y            MsgBox (data.AtDouble(3))        '缩放比例            data.AtDouble (4)        '图片在绘图时，是否参于打印，出图            data.AtLong (5)        '否绘制它的在文档中的外框标记            data.AtLong (6)        '图片在数据库中的宽度            data.AtDouble (7)        '图片在数据库中的高度            data.AtDouble (8)        '闪烁时使用的ImageFile            data.AtString (9)        '标注文本            data.AtString (10)        '标注文本高度            data.AtDouble (11)        '颜色索引            data.AtLong (12)              End If          End If        End Sub