TheCadLibisnotaComputerAidedDesign(CAD)program.ItisatoolforcreatingDXFfilesthatareusedintheCADprograms.Itconsistsoftwoparts.OneofthemisaDynamicLinkLibrarytocreatetheDXFfile.Theotherpartistheprogramminginterface.Itisaclassthatintegratesthecadio.dllfunctions.Itcanbeusedin