SUMMARY STEPS TO REPRODUCE 1. Set "Open new files in tabs" in Settings 2. Add a registry "Parameter" key in [HKEY_CLASSES_ROOT\AppXhptkdxysnj90q56w5z3sx7d7a55gse06\Shell\open] with value '--unique "%1"' OBSERVED RESULT Each new file gets opened in a new window (with a new process). Passing the --unique argument show a dialog every time saying something like 'Another unique instance is running, this won't be the unique instance...' although there are no Okular processes running on the system. EXPECTED RESULT Open all (PDF) files in tabs of a single program instance. SOFTWARE/OS VERSIONS Windows: 10 build 2004 macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
*** Bug 428568 has been marked as a duplicate of this bug. ***
This can also be reproduced by running okular --unique from the command line, without any registry edit.
*** Bug 439548 has been marked as a duplicate of this bug. ***
I don't think we ship dbus, so thats probably the cause.
Yes, there is no working dbus there. Kate uses QtSingleApplication for that on Windows, but that is hacky, too. I could try to improve the error message by checking better if some dbus session bus is around at all.
*** Bug 457520 has been marked as a duplicate of this bug. ***
Having the same issue. Have enabled: "Open new files in tabs" but the setting is being ignored
I still have same issue, hopes they fix it soon.
One needs to implement that feature for Windows, so far I don't think somebody is working on that.
Hi, I’ve been using Okular for a few weeks. I like the application, but I also noticed this annoying bug. Thanks for the app by the way :)