Find Open Data Dictionary Handle

I am programmatically editing some entries in referenced data dictionaries (opened via top-level data dict). As such, I do not have the handles for the individual referenced data dictionaries and only the top level one.
Is there a way to find the handles for all the loaded data dictionaries? Currently, I am trying to use Simulink.data.dictionary.getOpenDictionaryPaths to find the open data dictionaries then reopen them with Simulink.data.dictionary.open but that is failing. This is only an issue on one specific computer and works on the other ones I have tested it on.

3 Comments

@Curve Rush, Use the following code to get handles for all open data dictionaries, including referenced ones:
paths = Simulink.data.dictionary.getOpenDictionaryPaths;
handles = cellfun(@Simulink.data.dictionary.open, paths, 'UniformOutput', false);
If it fails on one computer, check for file access issues or permissions. Add a try-catch block to identify problematic files.
I have used the new linker, which seems to have reduced the issue
Elsa
Elsa on 14 Jan 2026
Edited: Elsa on 14 Jan 2026
I’ve used the new linker, which appears to have reduced the issue.

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R2020a

Asked:

on 24 Jul 2025

Edited:

on 14 Jan 2026

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