NAME

       SDL_AddHintCallback - Add a function to watch a particular hint.

HEADER FILE

       Defined in SDL3/SDL_hints.h

SYNOPSIS

       #include "SDL3/SDL.h"

       bool SDL_AddHintCallback(const char *name, SDL_HintCallback callback, void *userdata);

DESCRIPTION

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

FUNCTION PARAMETERS

       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.

RETURN VALUE

       Returns true on success or false on failure; call

       SDL_GetError () for more information.

THREAD SAFETY

       It is safe to call this function from any thread.

AVAILABILITY

       This function is available since SDL 3.2.0.

SEE ALSO

       •(3), SDL_RemoveHintCallback(3)

Simple Directmedia Layer                            SDL 3.2.8                             SDL_AddHintCallback(3)