How Can I Call C# DLL Functions from Go Without a C /C Wrapper?

Calling C# DLL Functions from Go Language without a C /C Wrapper

In this article, we will explore options for invoking functions from a C# DLL (Class Library type) within a Go program, without the need for a C /C (Win32) wrapper.

Options for Direct Invocation:

There are two main options available for directly calling C# DLL functions from Go:

1. COM Interoperability (Windows Only):

• Convert the .NET DLL into a COM component.
• Utilize the COM interoperability features provided in Go for Windows, as detailed in the links provided in the original question.

2. Wrapping with a C# Console Application:

• Create a simple C# console application that wraps the DLL.
• Invoke the console application from Golang using the os/exec package.

Pros and Cons:

COM Interoperability:

• Pros:

  • Native COM support in Go.

• Cons:

  • Limited to Windows operating systems.

C# Console Application Wrapper:

• Pros:

  • Platform-independent (if the C# DLL is cross-platform).
  • Easier implementation, as it requires only basic C# knowledge.

• Cons:

  • Additional overhead of a separate process.

Conclusion:

Depending on the specific requirements of your application, both options offer ways to directly call C# DLL functions from Go without a C /C wrapper. The decision between them should be made based on factors such as platform compatibility, performance concerns, and your own proficiency with C#.

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