he most of Viewer tools doesn't include API for developers. However
CADian Viewer delivers excellent interface or plug-in for developers.
This means all programmers for VBA, VB, AutoLisp, C, C++ or C# can apply
new functions through CADian Viewer and also, they can link CADian
Viewer to ERP, PDM, PLM, Drawing management system. Furthermore we will
support the new functions or wish lists that the developers want.