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How to Call a C# Library from Native C Using C /CLI and IJW?

Patricia Arquette
Release: 2024-11-06 13:19:02
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How to Call a C# Library from Native C   Using C  /CLI and IJW?

How to Call a C# Library from Native C Using C /CLI and IJW

Using COM Objects vs. IJW

While both COM objects and IJW can be used to call C# libraries from native C , IJW is generally recommended for newer projects. COM objects require a higher level of interoperability support, which can be more complex and error-prone. IJW, on the other hand, provides a more direct approach to interacting with C# libraries.

Creating a Wrapper Library with C /CLR and IJW

The ideal approach for calling C# libraries from native C is to create a wrapper library in C /CLR. This wrapper library can use IJW to seamlessly interface with the C# library and expose its functionality to native C code.

To create a C /CLR wrapper library, follow these steps:

  1. Create a new C /CLR project in Visual Studio.
  2. Right-click on the project folder and add a header file (.h) and a source file (.cpp).
  3. In the project properties, enable the "CLR support" option.
  4. In the Additional #using Directories, add the path to your C# library.

Interfacing with the Managed Class

Once you have created the wrapper library, you can create and instantiate a managed class in unmanaged C code.

Interfacing with C# Library from Native C Code

To interface with the C# library from native C code, simply include the header file of the wrapper library and call the methods exposed by the wrapper class.

Research Resources

In addition to the links provided in the question, you can also refer to the following resources for more information:

  • [Walkthrough: Combining Managed and Unmanaged Code with Visual C ](https://docs.microsoft.com/en-us/visualstudio/cpp-docs/walkthrough-combining-managed-unmanaged-code-visual-cpp)
  • [Calling Managed Code from Unmanaged Code](https://docs.microsoft.com/en-us/cpp/cli/calling-managed-code-from-unmanaged-code)
  • [What's New in Visual C (C )](https://docs.microsoft.com/en-us/visualstudio/cpp-docs/whats-new-in-visual-cpp-c--)

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