Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_JoystickID - This is a unique ID for a joystick for the time it is connected to the system, and is
never reused for the lifetime of the application.
SYNOPSIS
#include <SDL3/SDL_joystick.h>
typedef Uint32 SDL_JoystickID;
DESCRIPTION
If the joystick is disconnected and reconnected, it will get a new ID.
The value 0 is an invalid ID.
AVAILABILITY
This datatype is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_JoystickID(3type)