GCS_SEND_TEXT messages should support different languages

[rmackay9]

AP sends many important messages to the ground station and we should support displaying these in different languages. It's not only convenient but especially for important warnings it can be a safety issue

This request was received at the 2025 Japan Drone Expo

[peterbarker]

#17244 is relevant.

You can't really "translate" GCS_SEND_TEXT messages as different languages want different substitution strings in different orders - so your string ("Your %s %d is > %u") may need to be XYZZY %d YY >%u %s in a different language.

The mavlink events interface is supposed to allow for this sort of thing.

[timtuxworth]

I have had many requests for this from China, Indonesia and Brazil (at least), including from several partners.

[timtuxworth]

#17244 is relevant.

You can't really "translate" GCS_SEND_TEXT messages as different languages want different substitution strings in different orders - so your string ("Your %s %d is > %u") may need to be XYZZY %d YY >%u %s in a different language.

The mavlink events interface is supposed to allow for this sort of thing.

I think the issue as written by Randy doesn't mention GCS_SEND_TEXT. Maybe events are an option, maybe doing something with send text, maybe some other way, but language is a UI thing which should be done on the GCS, not on the AP.

[peterbarker]

I think the issue as written by Randy doesn't mention GCS_SEND_TEXT.

It's right there in the title :-)