Why is the initialization code for a block mask not executed in protected models?

I have a protected model reference containing blocks with initialization commands specified on the Initialization pane of the Mask Editor.  I expect these commands to execute at model update (Ctrl+D).  However, I noticed that they do not execute when I run or update my model.

However, if I use a model reference(unprotected) in place of the protected model reference, the initialization callback runs fine.

How do I use the Initialization commands callback in a protected model reference? 

Answer 1

[MathWorks Support Team]

Currently (as of R2018a), the block mask initialization commands do not execute in protected models.

If you have scripts that run in the Initialization Commands, then they will not execute.

There is a way to register callbacks for a protected model is documented as follows: 

To refer to the documentation, run the following command in MATLAB R2018a:

web(fullfile(docroot, 'rtw/ug/define-callbacks-for-protected-model.html'))

If you want the protected model to execute any m-code during model initialization, you will need to specify that m-code in the protected model's PreAccess SIM callback. 

Please follow the below link to search for the required information regarding the current release:

https://www.mathworks.com/help/

[Mikhail]

The question was regarding block callbacks, not model callbacks. Anyways, this is probably not possible because there are no "blocks" in protected model, since "The software stores the protected model as a compiled MEX binary."