i wan't to view the dwg in web with ActiveX,but i need't function of " save , print ,edit."
so how i can develop the ActiveX?
can you tell me some idea?
the .net plug can convet to web ActiveX?
You should have the source code to read binary DWG files (in different format versions). I don't see open source projects to read fully the DWG format. Most of them are commercial or closed-code. So we have to write our own code, or use the license library to read DWG files.
The codeproject.com has lots of links to help develop ActiveX in COM or .NET. I think you might start to use a library to read all entities in a DWG file first, and then draw them to the canvas (for example System.Drawing.Graphics class using GDI+). The output can be WinForm, WPF, Silverlight or ActiveX depending on your choice. This is lots of work and good luck to you.
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