@crueegg Hi, unfortunately, we had to cope with the same issue. The only way to circumvent it was to create a singleton class that handles a mapping between the id of the QMetaType and the custom alias. See https://gitlab.inria.fr/dtk/dtk-core/-/issues/30 for more details. Thib.

@oblivioncth same here. Neither Macro nor register function needed. no related documents.

I have created a bug report regarding this. I used the minimal example that you have created in the bug report. Thanks for sharing your minimal example. https://bugreports.qt.io/browse/QTBUG-111968

If memory serves well, the version with a QString parameter is geared toward declaring aliases.

Thanks a lot @SGaist

Ah, okay, so it's just me being dense.