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Teigha™X for .dwg files

An ActiveX control containing a rich set of tools for working with .dwg files — used to create small utility applications, rendering system, file converters, and more


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Built on top of the Teigha for .dwg files C++ development environment, TeighaX for .dwg files puts stable, powerful, and mature .dwg file technology into the hands of ActiveX developers. 

TeighaX for .dwg files is available for download by ODA members. Not a member? Several sample applications can be found in Public Downloads.

Detailed Features

  • Supported DWG™, DXF, and BDXF file formats:
    • Read support for .dwg files created in Autodesk® AutoCAD® 2.5 through AutoCAD 2010.
    • Write support for .dwg files created in AutoCAD 12 through AutoCAD 2010.
  • Render .dwg and .dxf files using GDI, OpenGL, or DirectX.
  • Recover and repair damaged .dwg files.
  • Recompute dimension geometry from dimension settings.
  • Edit and manipulate DWG data programmatically, including (with many more):
    • Explode an entity into a set of simpler entities.
    • Apply a transformation to an entity.
    • Modify arbitrary properties of database objects.
  • Export .dwg and .dxf file data to SVG, PDF, DWF, BMP.
  • Import DWF files.
  • Support for "round-trip" data. For example, when saving a 2007 .dwg file back to R14, 2007-specific properties are saved to the R14 file as xdata and then restored if the file is loaded back into a 2007-compatible application.
  • Support ACIS internally, including rendering (wireframe and shaded) and access to the underlying boundary representation data stored within an ACIS entity.

Due to restrictions of the COM environment, TeighaX for .dwg files does not allow users to create custom entity classes derived from standard TeighaX for .dwg files entity types. Users interested in utilizing Teigha Extension technology to extend objects should use the Teigha for .dwg files C++ environment.

Supported Operating Systems and Compilers

  • Windows 2000, Windows XP, and Windows Vista operating systems.
  • Visual Basic, C#, C++, and other COM-accessible development languages.

DWG is the native and proprietary file format for AutoCAD® and a trademark of Autodesk, Inc. The Open Design Alliance is not associated with Autodesk.