SDL_PEN_TOUCHID - The SDL_TouchID for touch events simulated with pen input.

       This macro is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.20                                 SDL_PEN_TOUCHID(3)

       SDL_PEN_TOUCHID - The SDL_TouchID for touch events simulated with pen input.

#include<SDL3/SDL_pen.h>#defineSDL_PEN_TOUCHID((SDL_TouchID)-2)