Francesco Casella

Adding @adeas31 to the loop, he's the one who develops the GUI

@adeas31 please check at your earliest convenience. We may want to put a fix to this also in 1.23.1

@t-sommer this is a good proposal to address a long-standing problem, see modelica/ModelicaSpecification#2191. We proposed an [alternative solution](https://github.com/modelica/ModelicaSpecification/issues/2191#issuecomment-2124156432) there a few months ago, which just requires all Modelica tools and...

> * ModelicaUtilityFunctions_t of @t-sommer misses the functions for ModelicaDuplicateString and ModelicaDuplicateStringWithError. You're right, see [Section 12.9.6.2](https://specification.modelica.org/maint/3.6/functions.html#string-allocation-utility-functions) they were added in [Modelica 3.5](https://specification.modelica.org/maint/3.6/modelica-revision-history.html#main-changes-in-modelica-3-5). @t-sommer you may edit your original proposal...

@HansOlsson the related issue modelica/ModelicaSpecification#2191 has been open for 7 years. I understand we now have two good proposals to fix it, so I would put it in the agenda...

> Passing instances of external objects to functions is already allowed today, so this should not require any changes to the Modelica language. @t-sommer maybe @fedetftpolimi has a point. It...

One idea could be to amend the specification of the external function interface by defining a pointer to an implicitly defined default instance `modelicaUtilityFunctions` of the `ModelicaUtilityFunctions` pre-defined external object,...

Motion of order: the discussion about exception handling and ModelicaError is very interesting and important for future development of Modelica, but it is out of scope here, I would warmly...

I had some discussion with @henrikt-ma and @t-sommer about the issue that I raised with [my MWE](https://github.com/modelica/ModelicaStandardLibrary/issues/4476#issuecomment-2411850887). This could be solved by providing a constant external object instance in ModelicaServices,...

@fedetftpolimi had a quite good idea, i.e. to combine @t-sommer's concept of an external callback object with his idea of importing symbols. This combination has many nice features: - it...