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AutoCAD 2025 Developer and ObjectARX
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          • Deriving a Custom ObjectARX Class
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    Deriving a Custom ObjectARX Class

    This section describes how to organize your code and use the ObjectARX ® macros to simplify the task of deriving a custom ObjectARX class. The macros allow a custom class to participate in the AcRxObject runtime type identification mechanism. If you do not need to distinguish your custom class at runtime, you can use standard C++ derivation style to create the new class.

    Topics in this section
    • Custom Class Derivation
    • Runtime Class Identification
    • Class Declaration Macro
    • Class Implementation Macros
    • Class Initialization Function

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