【摘要】 介绍了空间ＯＬＥ／ＡｃｔｉｖｅＸ 控件的意义及基本概念，探讨了该类控件的实现方法，建立了基于ＭａｐＩｎｆｏ 软件的空间控件，并在其他应用软件环境中成功地实现了对该控件的调用与图形操作。更多还原

【Abstract】 OLE control technique is one of the key technologies for information system integration, and controls handing spatial data are effective means to expand the utilization of spatial information. In this paper, the concept and structure of OLE/ActiveX control is introduced briefly, followed by discussion of its realization. A spatial control is created based on MapInfo, using MS Visual C ++ programming language. The spatial control has been successfully embedded and manipulated in other application software.更多还原