VC++读写DXF源代码 ThemainreferenceforDXFfilestructurethatisusedforCadLibistheAutoCad'sDXFreference.YoucanfindmoreinformationaboutDXFfilestructurehere. Classes TheclassesareinterfacesbetweenCadIO.dllandthemainprogram."Test"hascomewithCadLibtodemonstratehowtog