"Open with" in Qt5 application

[PulkoMandy]

@phw

But that’s true the other way round, too: If an app does not specify B_ARGV_ONLY the assumption that it handles a ref message is only a wild guess as well.

Yes, ideally this would rather be opt-in, but I suspect it was a somewhat late addition to the API, and doing it that way would have excluded perfectly working apps from the “Open With” list, or something.

Also, if an app cannot handle opening files then there should also be no mimetype registration. I think it’s save to assume that an app which registers mimetypes is able to open files.

Not necessarily, for example DiskProbe can open any file and does not care about MIME types.

Likewise it should be save to assume if an app specifies B_ARGV_ONLY it should be able to handle command line arguments, otherwise specifying this flag would be wrong.

Handling command line arguments does not imply in any way that it is save or even going to work at all to pass a file path through argv[1].