ODA Drawings SDK provides an object-oriented C++ API; at its core it supports working with .dwg files, but an additional, directly integrated component supports working with .dgn files. Client applications can customize and extend Drawings SDK classes and create custom extension modules that read, write, edit, and render .dgn files. Similar to working with .dwg files, DGN drawing data is stored in a structured database and all data access is through member functions.
Integration with the Drawings SDK core support for working with .dwg files provides the following advantages for .dgn file support:
Note that an optional module is available for conversion of V7 format files to V8 format files.
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