Re: GUI incompatibility

[Andreas Höschler]

Hi Fred,

>>> That doesn't seem to be the cause of the issue anyway; The different 
>>> behavior between GNUstep & OS X appears to be due to mismatched return 
>>> values of -[NSWindow makeFirstResponder:] - if the passed responder refuses 
>>> first responder status, GNUstep's version returns NO, but OS X's version 
>>> returns YES:
>>> https://developer.apple.com/documentation/appkit/nswindow/1419366-makefirstresponder?language=objc
>> 
>> Thank you Josh for pointing this out. This looks like the correct way to go.
> 
> I just committed a change in the line of Josh’s reasoning. Andreas, please 
> give it a try.

Thanks a lot!!! This works! 

Further testing the apps ...

Best wishes,

 Andreas