XWin copy/paste succeeds on Windows 7, crashes on Windows 11 Enterprise.

[Stone, Timothy M]

Hi folks,



I'm having a really hard time debugging this issue.



If I use the exact same version of cygwin and XWin, exact same code, exact same Motif GUI app...



I find that when I try to use copy/paste functionality in TextFieldWidgets:



  *Cut/Copy/Paste works perfectly on Windows 7 Professional



  *Cut/Copy/Paste does not work at all and typically crashes on Windows 11 Enterprise



I am using an older version of cygwin for this specific test (cygwin 1.7.15 and XWin 1.13.2-1), but I am having the same issue with the latest version as well.



The fact that the same version works on 1 system and not on another seems to be the most important clue here.



Is there some system configuration I can enable to make the clipboard integration work on my newer system?





I am launching XWin like this on both systems (with clipboard integration):



run XWin -multiwindow -clipboard -silent-dup-error



Any help greatly appreciated!  Seems this must be a system issue since everything about the cygwin and XWin is exactly the same on both systems?



thanks!

tim