Hi, this is controlled by the KIO::ApplicationLauncherJob. It asks KService whether it can launch one instance or if it needs to do n instances, and this is the code that KService uses for that:
bool KService::allowMultipleFiles() const { Q_D(const KService); // Can we pass multiple files on the command line or do we have to start the application for every single file ? return (d->m_strExec.contains(QLatin1String("%F")) // || d->m_strExec.contains(QLatin1String("%U")) // || d->m_strExec.contains(QLatin1String("%N")) // || d->m_strExec.contains(QLatin1String("%D"))); } In short, you should be using the standard XDG thing that says you can take multiple URLs on launch in your .desktop file (%U in the Exec key). Cheers, Janet Am Fr., 15. Juli 2022 um 17:35 Uhr schrieb Tobias Leupold <t...@stonemx.de>: > > Hi list! > > I'm working on Bug #455074, and I noticed some behavior of Dolphin I wonder if > it can be changed or worked around. > > What happens when I select multiple files in Dolphin and do "open with" is > that not a list of the selected files is passed to the called program, but one > instance of the program is opened for each file. > > This does not only happen for what I try to implement in KGeoTag, but also > e.g. for the Gimp (instead of opening a tab for each file, one Gimp instance > is opened for each file). > > So: Can this behavior be changed? Is it possible to send a list of files to a > program called via "open with"? And can I tell Dolphin to do so via the > .desktop file or such? > > In case of KGeoTag, what I implemented to open files and/or directories using > command line parameters works fine if it's called via the command line (also > with wildcards), but not via Dolphin ... > > Thanks for all help! > > Cheers, Tobias > >