Re: Re[2]: Unexpected encoding issue with _() macro and UTF-8 source in Unicode build (wxWidgets 3.3.1)

Hi,

Thank you for the clarification — now everything is clear.

Claudio.

Il giorno venerdì 14 novembre 2025 alle 18:07:59 UTC+1 Vadim Zeitlin ha 
scritto:

> On Fri, 14 Nov 2025 17:46:51 +0100 Claudio Fabiano Rossato wrote:
>
> CFR> Thanks for the explanation — it clarifies the behavior of |_()|.
> CFR> 
> CFR> I understand now that the argument is always treated as an ASCII key. 
> I 
> CFR> still find it surprising that this means a program cannot be written 
> in 
> CFR> Italian first and then translated to English. It seems that with 
> CFR> wxWidgets, multi-language programs must always start with English 
> strings.
>
> This is not quite correct, message IDs can use any encoding, it just needs
> to be specified in the message catalog. OTOH _all_ "char*" string are
> assumed to be in the current locale encoding by wxString, and this is not
> specific to _() at all. Unfortunately, while the current locale encoding is
> almost always UTF-8 under Unix systems (including macOS), this is almost
> never the case under Windows. You may set it explicitly, but if you don't
> change the current locale, its encoding will be CP1252 and not UTF-8 by
> default.
>
> If you're sure that all your strings are in UTF-8, you may build wxWidgets
> in UTF-8-only mode, but this is not the default. Alternatively, and
> actually recommended if you are not working with a legacy code base where
> this can be difficult to do, define wxNO_IMPLICIT_WXSTRING_ENCODING when
> building your project (you do _not_ have to rebuild wxWidgets for this) to
> get errors for all implicit conversions from "char*" as this will force you
> to specify the (hopefully correct) encoding for all of them.
>
> See https://wxwidgets.org/blog/2020/08/implicit_explicit_encoding/ for
> more details.
>
> Regards,
> VZ
>
> -- 
> TT-Solutions: wxWidgets consultancy and technical support
> https://www.tt-solutions.com/
>

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