What question did this study set out to answer?

The aim is to guide users on exporting C entry points from C# using Native AOT for calling in C/C++ applications.

July 29, 2026Open Access

Calling a C# Native AOT DLL from C/C++ (archived 2026-07-27)

Key Points

The aim is to guide users on exporting C entry points from C# using Native AOT for calling in C/C++ applications.
Describes project setup for integrating C# Native AOT and C/C++.
Explains the use of the UnmanagedCallersOnly attribute for exporting functions.
Includes string handling techniques when passing data between C# and C/C++.
Successfully demonstrates the call of exported C entry points from C# in a C/C++ environment.
Provides a working sample that illustrates the integration and function call process.

Abstract

Export C entry points from C# with Native AOT and UnmanagedCallersOnly and call them from C/C++ - project setup, string handling, and a working sample. Archived version of https://comcomponent.com/en/blog/2026/03/12/003-csharp-native-aot-native-dll-from-c-cpp/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-03-12.

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