How to change value of a constant block that's inside of a library

I programmatically want to change the value of a Constant Block inside a library. It works great but I get a warning that I'm modifying the internals of a library block:

set_param(gcb, 'Value', '1');

Warning: Overriding parameters of 'MyModel/MyLib/Constant' which is inside a library link. These changes can be changed, propagated, or viewed using the 'Link Options' menu item

The intent of the library is to enable a GUI to change the Constant block during run-time hence I can't have the warnings.

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I've tried to solve the issue by adding a library mask parameter to hold the value together with a callback updating the Constant block. This works except that the callback doesn't get executed during run-time (hence I can't change the parameter from GUI during run).

Please let me know how to do this. Thanks!!

[Bjoern]

BTW for the mask parameter mentioned above: If I could execute the "Mask Dialog Parameter Callback" after updating the value parameter my problem would be solved:

_set_param('MyModel/MyLib', 'MyGuiValue', '5');_

_??EXECUTE CALLBACK FOR MASK PARAMETER: MyGuiValue_

Answer 1

[Bjoern]

I found a good way if anyone's interested:

Don't use a Mask Parameter-Callback to change the Constant Block. Instead, reference the Mask Parameter inside the Constant Block. Now all that is needed is to change the Mask Parameter (here MyGuiValue), something like:

set_param('MyModel/MyLib', 'MyGuiValue', '5')

and the simulation picks it up correctly.

[Kaustubha Govind]

Thanks for posting your solution!