Write to external SD card

I have a Juce-based windows application and would like to write proprietary data from the application to an Android device’s SD card (I figured that since the code is written on the Windows side, the Windows forum was more appropriate for this post). Can you recommend any classes which can detect external device file systems and the cooresponding drive letters for those systems? Thanks!

I’ve really no idea how you’d do that, or whether it’s even possible…