How to find the « DataType ID » of a class Simulink.IntEnumType

Good morning I want to create a Sfunction Matlab level 2 that will use as input and output some variable of classes Simulink.IntEnumType. Each class Simulink.IntEnumType. is created by a .m file like the folowing :

classdef Valeur_State < Simulink.IntEnumType
    enumeration
        Valeur1 (0)
        Valeur2 (1110)
        Valeur3 (1120)
        Valeur4 (1130)
        Valeur5 (1140)
        Valeur6 (1150)
        Valeur7 (1160)
    end
end

In the matlab level 2 S function I can define an input port that will accept the variable of my class Simulink.IntEnumType using the value -1 (inherited) for the «DatatypeID »

block.InputPort(3).DatatypeID = -1; % -1 for inherited block.InputPort(3).Complexity = 'Real';

I have checked that the Simulink.IntEnumType variable is available for the Sfunction code.

But for an output port, the documentation writes that the « DatatypeID » must be defined explicitely. My problem is that I don’t know how to find the « DatatypeID » of my class « Valeur_State » < Simulink.IntEnumType

I am looking for this information since a week without succes.

On the forum i have find the proposal of the following code : It is possible to register custom fixed-point data type in the Level-2 MATLAB file S-Function as follows:

% Register fixed point datatype to obtain datatype id i
sSigned = 1; 
wordLength = 16; 
fracSlope = 1; 
fixedExp = -9; 
bias = 0; 
obeyDataTypeOverride = false; 
dtID = block.RegisterDataTypeFxpFSlopeFixExpBias ...
    (isSigned, wordLength, fracSlope, fixedExp, ias, obeyDataTypeOverride); 
block.InputPort(1).DatatypeID = dtID;

but I don’t reach to use it and I do not understand how the function could find the DatatypeID of a class without sending the name of this classe to the function !

please help !

[daniel Monterrain]

My question (How to find DATA TYPE ID of a simulink ENUM class) is now a bloking point for my project. I have founded a solution not to use output of my matlab level 2 S function for output of class Simulink.IntEnumType, using blocks out of the S function and writing in this block from the S function using a set_param. it is oK (but not efficient?)

Now i want to compile my model to build a library and afer a standalone application. But the Set_param command cannot be used in this case!

How can i do ?

please help !