NAME¶

SDL_AddHintCallback - Add a function to watch a particular hint.

SYNOPSIS¶

#include "SDL3/SDL.h"

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

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 0 on success or a negative error code on failure; call

SDL_GetError () for more information.

AVAILABILITY¶

This function is available since SDL 3.0.0.

SEE ALSO¶

SDL_DelHintCallback(3)