Communicating to NET dll by class.

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Hi,
Is there anyway to send a class to and from a matlab .NET dll and a C# Visual studio project?
Thanks in advance
Laurent

Accepted Answer

Yash Sharma
Yash Sharma on 17 Jan 2024
Hi Laurent,
Yes, it is possible to send a class to and from a MATLAB .NET assembly and a C# Visual Studio project. MATLAB Compiler SDK allows you to create a .NET assembly from MATLAB code, which can then be used in .NET applications such as those written in C#. However, there are some considerations and steps you need to follow:
Creating a .NET Assembly from MATLAB
  1. Write your MATLAB code and save it in a function or class that you want to compile into a .NET assembly.
  2. Use the MATLAB Compiler SDK to compile your MATLAB code into a .NET assembly. You can use the deploytool or the mcc command to do this. For example:
mcc -W 'dotnet:MyMatlabAssembly,ClassLibrary,4.0,private' -T 'link:lib' -d 'C:\MyMatlabAssembly' -v 'class{MyClass:C:\MyMatlabCode\myFunction.m}'
This command will generate a .NET assembly MyMatlabAssembly.dll that contains the class MyClass with the method myFunction.
Using the .NET Assembly in a C# Visual Studio Project
  1. Add a reference to the generated MATLAB .NET assembly (MyMatlabAssembly.dll) in your C# project.
  2. Add a reference to the MWArray.dll assembly, which is provided by MATLAB Compiler Runtime (MCR) and is necessary for handling MATLAB data types in .NET.
  3. Use the MATLAB class in your C# code. You will need to create instances of MWArray or its derived classes (e.g., MWNumericArray, MWStructArray, etc.) when interacting with the MATLAB functions or classes.
using MathWorks.MATLAB.NET.Arrays;
using MyMatlabAssembly;
class Program
{
static void Main(string[] args)
{
// Initialize MATLAB Runtime
MWArray[] inputs = new MWArray[] { /* your input data as MWArray */ };
MyClass matlabClass = new MyClass();
// Call MATLAB function
MWArray result = matlabClass.myFunction(inputs);
// Convert result to a C# data type if needed
// ...
// Clean up
matlabClass.Dispose();
}
}
If you have a custom class in C# that you want to pass to MATLAB, or vice versa, you will typically need to convert the class to a compatible MWArray type (e.g., MWStructArray for MATLAB structs) before calling the MATLAB function and then convert it back to your custom class after receiving the output.
Take a look at the below documentaion which might be helpful for your implementaion.
Hope this helps!

More Answers (1)

Laurent Davenne
Laurent Davenne on 17 Jan 2024
Thank you Yash!

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