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convert to .dwg/.dxf format from a drawing made of gdi drawing functions

I'm writing a program which is essentially a simplified CAD program. It uses a series of the gdi drawing functions (like line/rect/polygon/textout/draw(bitmaps)/etc.) to produce an overall drawing. So when these files are saved to a file, they are in their own format to describe the item to draw (written as a structure with binary data to the file).

I'm looking to be able to convert this drawing into the .dxf and .dwg formats.

How do I do this? I'd like to just use a program which I can give a description of my structures to or somehow inform on how to read/write with my format, and then do the rest for me. But if this isn't possible how else can I do this?

Thanks!
-Josh

ASKER CERTIFIED SOLUTION

ShaunWilde

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jbirk

ASKER

Thanks for the reference. Looks a good site! A little expensive for commercial distribution, but it looks like it might do what I need. I'll get back to you after I have a chance to try and use their libraries.

-Josh

ShaunWilde

also how about http://www.dcs.ed.ac.uk/home/mxr/gfx/3d-hi.html

sorry these are coming in slowly - I looked up this info for a friend who uses autocad a few weeks back - so I am just waking my history between compiles :)

jbirk

ASKER

I've looked at it more in depth with my company, and it looks like opendwg is what we'll go with. I'm probably going to try and get something working with it tomorrow. I'll get back to you on how it goes, and if it'll work out for sure.

-Josh

jbirk

ASKER

Well, the project was put on hold, but I'm confident that the opendwg is what I was looking for, so here's your points. Sorry for the delay in rewarding them.

-Josh

ShaunWilde

you may also find this useful

Take a look at Kadmos' DXFReader control at

http://www.kadmos.com/activex/