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Tag: AutoCAD 2027

  • AutoCAD 2027 Drag-Drop Fixed in Update 1

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    by

    Madhukar Moogala
    in

    When AutoCAD 2027 was first released with .NET 10 support, many developers encountered a critical regression: drag-and-drop operations from custom palettes to the drawing area would crash with an InvalidCastException. System.InvalidCastException: Unable to cast COM object of type ‘System.__ComObject’ to interface type ‘System.Windows.Forms.IDataObject’. QueryInterface call failed with E_NOINTERFACE (0x80004002). What Caused It? This was a…

  • AutoCAD 2027 SDK: What Every Plugin Developer Needs to Know?

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    by

    Madhukar Moogala
    in

    AutoCAD 2027 ships with a new ObjectARX SDK. If you maintain C++ or .NET plugins for AutoCAD, this post covers what changed in the development environment, what the compatibility picture looks like, and where to find the full API delta. Binary Compatibility & Development Environment Not every AutoCAD release breaks compatibility. When two releases are…