【摘要】 在详细介绍OLE自动化技术的基础上,论述了利用OLE自动化技术和可视化开发工具———Delphi编程,实现与MapInfo的地图集成。将Delphi强大的数据库编程能力和MapInfo的图形表达能力有机结合,实现MapInfo的集成二次开发,分析在何种情形下进行MapInfo的消息回调,并探讨了如何实现MapInfo消息的回调。更多还原

【Abstract】 The OLE automation technology is described in detail in this paper,then the method of re-alizing map-integration between Delphi and MapInfo using OLE automation technology is introduced.Combined the powerful database programming ability of Delphi with the expression ability of graphics of MapInfo,the integration secondary development of MapInfo is realized.In what conditions the meas-sage callbacks of MapInfo can be made is analysed,and how to realize the callbacks of MapInfo messages is also discussed.更多还原