Ivan is a .NET class library written in C# using
Visual Studio 2010, that allows you to incorporate the
use of AutoCAD(R) DWG(R) files into your .NET
applications. It currently supports versions R15
(R2000), R18 (R2004), R21 (R2007) and R24 (R2010).
Ivan consists of a single .NET assembly and is very
lightweight and easy to use.

You can use Ivan to load DWG(R) files then access all
the contents of those files including objects,
entities, sections, xdata, xdictionaries, xrecords,
etc. Essentially, the entire contents of the drawing
file are at your disposal. As the drawing is loading,
Ivan checks all Crcs, Checksums and Check Data within
the file to ensure its integrity and issues an
exception if the file is corrupt.

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