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引言ACAD是目前世界上最成功的微机CAD软件平台,这不仅是因为它支持的平台多,易学易用,更主要的是因为它具有开放的体系结构,允许用户对其进行扩充和修改,最大限度的满足用户的特殊要求。AutoCAD C语言开发系统一ADS(AutoCAD DevelopmentSystem)是一组可供用C语言编写AutoCAD应用程序的头文件和目标库。ADS应用程序是可以在AutoCAD环境中运行的可执行文件,它和AutooCAD建立通讯联接,向AutoCAD发出命令,并获得命令执行的结果。同时,ADS应用程序拥有C语言运行函数库的全部功能。这使得外部可执行文件与AutoCAD核心紧密联系在一起,为在AutoCAD上进行二次开发提供了强有力的编程手段。
Introduction ACAD is the world’s most successful microcomputer CAD software platform, not only because it supports more platforms, easy to learn to use, more importantly, because it has an open architecture that allows users to expand and modify it, the largest Limit to meet the special requirements of users. AutoCAD C Language Development System ADS (AutoCAD Development System) is a set of header files and target libraries for writing AutoCAD applications in C language. The ADS application is an executable file that can be run in an AutoCAD environment. It establishes a communication link with AutooCAD, issues commands to AutoCAD, and obtains the results of command execution. At the same time, ADS applications have all the features of the C runtime library. This makes the external executables closely linked with the AutoCAD core, providing a powerful programming tool for secondary development on AutoCAD.