Delphi Dynamic Link Library (dll). Surface Carton Design Software Realization

With the rapid development of information technology, carton industry as other manufacturing industries, experienced from the stand-alone operation to an internal local area network running the Internet, the ultimate cause of the development process, the competition between peers into the internal management of the competition. By comparing the popular software development platform research and found that Delphi is a simple, ease to master, and powerful, practical system development software.DLL(Dynamic Link Library) is a kind of special executable file, and its memory mechanism can reduce occupation of system resource, and it is convenient in updating. DLL, with advantages of saving storage, code sharing, convenient updating and language-independent, has been applied widely. In addition, Delphi realizes form repeat system by DLL. The user can store the form designed in the DLL, and call it as required. The article researched how to call the DLL file in the carton soft and generate a bmp carton drawing. Based on the above characteristics, this subject used the Delphi technique of dynamic link library.After the analysis of the software on the carton, the subject of using the Delphi technique of dynamic link libraries, database development with SQL SERVER established a carton design drawing of the DLL library modules.