MATLAB SDK .NET Using a Matlab Class array as an output

Hi

I am trying to return an array of custom objects (from a matlab class definition) in a function that I am compiling into a .NET dll. If I call the function from Matlab, I get back what I expect an array in which each element is an object containing a set of properties I have defined

Example:

function [ output ] = Test( inputarg1, inputarg2)

      o(1,2) = MyClass();
      o(1,1).PropA = 'Hello';
      o(1,1).PropB = 'Hi';
      o(1,1).PropC = 1.45;

      o(1,2).PropA = 'Hello again';
      o(1,2).PropB = 'Hi again';
      o(1,2).PropC = 3.65;

      output = o;
  end

Once I have compiled this into a dll using the Library compiler (and I see it states under "Files Required for your library to run" that the class definition is listed) and I call the function, it just returns null as the MWArray output.

How do I use custom matlab classes as outputs in compiled .net dlls?

Am i missing something when i am compiling?

Answer 1

[Varun Bhaskar]

Hello,

.NET does not have any built-in data type that corresponds to the MATLAB specific structure and cell types. The MWArray API offers the datatype handling capabilities mentioned in the link below:

Overview of Data Conversion Classes

The workaround would be to make MATLAB functions return the supported types above and compile these functions into a .NET Assembly.