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

NAME
SDL_IsJoystickVirtual - Query whether or not a joystick is virtual.
SYNOPSIS
#include <SDL3/SDL_joystick.h>
bool SDL_IsJoystickVirtual(SDL_JoystickID instance_id);
FUNCTION PARAMETERS
instance_id
the joystick instance ID.
RETURN VALUE
Returns true if the joystick is virtual, false otherwise.
AVAILABILITY
This function is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_IsJoystickVirtual(3)