SDL_AddHintCallback - Add a function to watch a particular hint.

       This function is available since SDL 3.2.0.

       The  callback  function  is called _during_ this function, to provide it an initial value, and again each
       time the hint's value changes.

name   the hint to watch.

       callback
              An SDL_HintCallback function that will be called when the hint value changes.

       userdata
              a pointer to pass to the callback function.

       SDL_AddHintCallback - Add a function to watch a particular hint.

       for more information.

SDL_RemoveHintCallback(3)

Simple Directmedia Layer                           SDL 3.2.20                             SDL_AddHintCallback(3)

#include<SDL3/SDL_hints.h>boolSDL_AddHintCallback(constchar*name,SDL_HintCallbackcallback,void*userdata);

       It is safe to call this function from any thread.