Re: Different keycodes for shifted characters under Wayland vs X11

"[email protected]" <[email protected]>
Newsgroups gmane.comp.lib.wxwindows.general
Message-ID <[email protected]>
Apparently paste image in groups editor is a known bug. 
Last try:
X11:
[image: x11.png]
Wayland:
[image: wayland.png]

On Saturday, April 29, 2023 at 2:52:54 AM UTC-7 [email protected] wrote:

> (Hmm. Google groups editor swallowed my images. Trying again)
>
> wxWidgets 3.2.2.1, built from source
>
> Linux (Ubuntu 22.04 LTS)
>
> Run the 'keyboard' sample and press <shift>-3 to type a ‘#’ character.
>
> Under X11 (forced by setting GDK_BACKEND=x11 env var), I get the same 
> behavior I see on MacOS and Windows: keydown on ‘3 (code=51)’, with shift 
> modifier set.
>
> $ GDK_BACKEND=x11 ./wxWidgets-3.2.2.1/buildgtk/samples/keyboard/keyboard 
>
>
>
>
> Under Wayland (no env var set, default for Ubuntu 22.04), I see keydown on 
> ‘#’ (code=35), with shift modifier set.
>
> $ ./wxWidgets-3.2.2.1/buildgtk/samples/keyboard/keyboard 
>
>
>
> My app makes use of unmodified keys for shortcuts (like GIMP and 
> Inkscape); so the operation bound to ‘#’ is now unusable on Wayland, 
> because my code is expecting <shift>-3, not <shift>-#.
>
> Found this on wxPython. I’m assuming it’s a GTK issue, not wxWidgets. 
> Frustrating that multiple layers of cross-platform toolkits (Gtk, 
> wxWidgets, wxPython) are exposing an inconsistency within one platform! But 
> also interesting that Inkscape, a GTK app that does run on Wayland, has 
> default shortcuts bound to both ‘3’ and ‘#’ that appear to work correctly. 
> So maybe it is wxGTK?
>
>
> Either way: what’s the recommended approach here? Do I just declare I 
> don’t support Wayland, or start special-casing code for X11 vs Wayland?
>
>
> Thanks for any help/suggestions.
>
> -ck
>
>
>
> On Saturday, April 29, 2023 at 2:49:18 AM UTC-7 [email protected] wrote:
>
>> wxWidgets 3.2.2.1, built from source
>>
>> Linux (Ubuntu 22.04 LTS)
>>
>> Run the 'keyboard' sample and press <shift>-3 to type a ‘#’ character.
>>
>> Under X11 (forced by setting GDK_BACKEND=x11 env var), I get the same 
>> behavior I see on MacOS and Windows: keydown on ‘3 (code=51)’, with shift 
>> modifier set.
>>
>> $ GDK_BACKEND=x11 ./wxWidgets-3.2.2.1/buildgtk/samples/keyboard/keyboard 
>>
>>
>> Under Wayland (no env var set, default for Ubuntu 22.04), I see keydown 
>> on ‘#’ (code=35), with shift modifier set.
>>
>> $ ./wxWidgets-3.2.2.1/buildgtk/samples/keyboard/keyboard 
>>
>> My app makes use of unmodified keys for shortcuts (like GIMP and 
>> Inkscape); so the operation bound to ‘#’ is now unusable on Wayland, 
>> because my code is expecting <shift>-3, not <shift>-#.
>>
>> Found this on wxPython. I’m assuming it’s a GTK issue, not wxWidgets. 
>> Frustrating that multiple layers of cross-platform toolkits (Gtk, 
>> wxWidgets, wxPython) are exposing an inconsistency within one platform! But 
>> also interesting that Inkscape, a GTK app that does run on Wayland, has 
>> default shortcuts bound to both ‘3’ and ‘#’ that appear to work correctly. 
>> So maybe it is wxGTK?
>>
>>
>> Either way: what’s the recommended approach here? Do I just declare I 
>> don’t support Wayland, or start special-casing code for X11 vs Wayland?
>>
>>
>> Thanks for any help/suggestions.
>>
>> -ck
>>
>>
>>
>>

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wayland.png (image/png, 37.5 KB) - not displayed
x11.png (image/png, 35.2 KB) - not displayed
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