Hi all, when I'm devoleping a keyboard,how does my ble device recognize which PC it connect(windows or MAC)

[victor_CHINA]

when my ble device connect MAC,is "CMD" key ,when my ble device connect windows ,is "ALT" key

tks

[awneil]

The device doesn't know - it's the way that the host interprets it.

EDIT

Perhaps this helps:

https://stackoverflow.com/a/27085911

[victor_CHINA]

Hi awneil ,thanks for your reply

but I have a bluetooth keyboard made by logitech(K380) 

when the kyeboard connect MAC,is "CMD" key ,when  the kyeboard connect windows ,is "ALT" key(don't need switch by hand)  and don't need install any APP on computer

do you know how to do the samething? : )