Originally Posted by RobFreundlich
Have you seen the Collections and Categories
app from the "Free Kindle Books and Tips" guy? It claims to be able to launch the Kindle Fire's kindle reader app on a specific book.
I don't know how they do it, but maybe there's some hope that Calibre Companion can do it somehow too.
Thanks for the hint.
There is a way to open books that have a valid amazon ID. Unfortunately, most books that come from calibre libraries do not have a "real" amazon ID, so the way doesn't work. My guess is that the app you point at works with books that have been downloaded from amazon and thus have valid IDs associated with them.
I have spent many hours trying to reverse engineer what exactly K4A does with the ID with the hope of being able to pass a file name instead, without success. That doesn't mean that there isn't a way, but it isn't documented and it isn't guessable, at least by me.