SUMMARY
When using the KDialog slider function, if the user clicks "OK", the exit code from the process is 1 (which indicates an error) but when clicking "Cancel" the exit code is 0 (which normally indicates successful completion in UNIX).

Other functions I've tested - such as the input box function - behave as expected with "OK" producing a 0 exit code, and "Cancel" producing an exit code of 1.

STEPS TO REPRODUCE
1. In your terminal run  `kdialog --slider "Test" "1" "10" "1" && echo OK || echo Cancel`
2. In the dialog box that pops up, press "OK"

OBSERVED RESULT
The terminal output says "Cancel"

EXPECTED RESULT
The terminal output should say "OK"

SOFTWARE/OS VERSIONS
Operating System: KDE neon Testing Edition
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0
Kernel Version: 6.5.0-27-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 12th Gen Intel® Core™ i7-12700H
Memory: 31.0 GiB of RAM
Graphics Processor: Mesa Intel® Graphics