(03-02-2018, 08:42 AM)mstreurman Wrote: I don't think that it is possible. The passthrough passes through the Bluetooth adapter for which the Wii / Game will load the driver thus leaving Dolphin AND Windows out of the equation. Don't take my word for it since I am not a developer, but that is what I understood from earlier comments and reading up on the passthrough story.
It would be possible to read the Bluetooth data as it passes through Dolphin to the emulated Wii, but getting any useful information out of it is going to be tricky. I wouldn't recommend it.