https://forums.autodesk.com/t5/net-forum/ojectarx-or-c-external-dll/m-p/6511171#M34911 <P>Though I programmed in ObjectARX many years ago I'm thinking that it may be better to use C# (running as a plugin in AutoCAD) which calls functions in an external DLL.</P><P>&nbsp;</P><P>The C# would be mainly GUI and DWG database stuff, while the DLL would do complex calculations.</P><P>&nbsp;</P><P>Is that a sensible approach?</P><P>&nbsp;</P><P>ObjectARX seems to require recompilation with almost every release of AutoCAD, presumably C# programs don't need to be updated so often. Is that right?</P><P>&nbsp;</P><P>&nbsp;</P> Fri, 19 Aug 2016 16:07:01 GMT oransen 2016-08-19T16:07:01Z https://forums.autodesk.com/t5/net-forum/ojectarx-or-c-external-dll/m-p/6511171#M34911 <P>Though I programmed in ObjectARX many years ago I'm thinking that it may be better to use C# (running as a plugin in AutoCAD) which calls functions in an external DLL.</P><P>&nbsp;</P><P>The C# would be mainly GUI and DWG database stuff, while the DLL would do complex calculations.</P><P>&nbsp;</P><P>Is that a sensible approach?</P><P>&nbsp;</P><P>ObjectARX seems to require recompilation with almost every release of AutoCAD, presumably C# programs don't need to be updated so often. Is that right?</P><P>&nbsp;</P><P>&nbsp;</P> Fri, 19 Aug 2016 16:07:01 GMT https://forums.autodesk.com/t5/net-forum/ojectarx-or-c-external-dll/m-p/6511171#M34911 oransen 2016-08-19T16:07:01Z https://forums.autodesk.com/t5/net-forum/ojectarx-or-c-external-dll/m-p/6558561#M34912 <P>Hi,</P> <P>&nbsp;</P> <P>I agree with your approach as many developers has taken this approach.</P> Tue, 13 Sep 2016 08:23:43 GMT https://forums.autodesk.com/t5/net-forum/ojectarx-or-c-external-dll/m-p/6558561#M34912 Virupaksha_aithal 2016-09-13T08:23:43Z