Introduction - If you have any usage issues, please Google them yourself
The program by the compiler to generate the operation of AutoCAD extension, that extension arx file, based on the prevalence of AutoCAD second development, many engineers, or engineers to develop products suited to their company is currently far the most commonly used tool is the Autodesk provided ObjectArx. The program is developed with the ARX, which have to create entity classes (CreateEnt class) that contains an object Line (straight line), circle (round), Pline (multi-segment line) constructor packaging, etc., as well as to modify their corresponding attribute Class (Modify), for beginners ARX programming personnel particularly useful!