SDL_hid_device_change_count - Check to see if devices may have been added or removed.

       This function is available since SDL 3.2.0.

       Enumerating the HID devices is an expensive operation, so you can call this to see if there have been any
       system  device  changes  since  the  last call to this function. A change in the counter returned doesn't
       necessarily mean that anything has changed, but you can call

       SDL_hid_enumerate () to get an updated device list.

       Calling this function for the first time may cause a thread or other system resource to be  allocated  to
       track device change notifications.

       Defined in SDL3/SDL_hidapi.h

       SDL_hid_device_change_count - Check to see if devices may have been added or removed.

       ( Uint32 ) Returns a change counter that is incremented with each potential device change, or 0 if device
       change detection isn't available.

•(3), SDL_hid_enumerate(3)

Simple Directmedia Layer                           SDL 3.2.10                     SDL_hid_device_change_count(3)

#include"SDL3/SDL.h"Uint32SDL_hid_device_change_count(void);