Re: [bug #26438] First application does not get a proper app icon under Window Maker

[Wolfgang Lux]

Hi Sergii,
> 
> 
> Hi Wolfgang,
> 
>> On 10 Dec 2021, at 15:47, Wolfgang Lux <INVALID.NOREPLY@gnu.org> wrote:
>> 
>> Follow-up Comment #7, bug #26438 (project gnustep):
>> 
>> This issue is not related to the backend, it's an issue interacting with the
>> WindowMaker protocol that allows GNUstep applications to control the app icon
>> instead of having WindowMaker manage the app icon itself. Essentially, it
>> means that the app icon must be the first window that a GNUstep application
>> opens and maps to the screen.
> 
> This issue may be related to backend type. Cairo backends doesn’t use XShm 
> extension on window drawing.
> Do you use Cairo backend with WindowMaker? Could you please try ART backend?

TBH, I haven't been using WindowMaker for a number of years now.
I've now tried it again and the code works for me. I hadn't noticed the subtle 
change in the _checkStyle: method, which has removed the group hint from the 
initial window used to compute the frame offsets and apparently does the trick 
to tell WindowMaker to ignore these windows when it comes to determining which 
window is the appicon.
So, sorry for the noise and insisting (twice) that my original fix would be 
necessary. :-(
I just blindly had guessed from Riccardo's description that the original issue 
was still present.

Wolfgang