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

NAME
SDL_GetGamepadID - Get the instance ID of an opened gamepad.
SYNOPSIS
#include <SDL3/SDL_gamepad.h>
SDL_JoystickID SDL_GetGamepadID(SDL_Gamepad *gamepad);
FUNCTION PARAMETERS
gamepad
a gamepad identifier previously returned by SDL_OpenGamepad().
RETURN VALUE
Returns the instance ID of the specified gamepad on success or 0 on failure; call SDL_GetError() for more
information.
AVAILABILITY
This function is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_GetGamepadID(3)