SDL_ResetHints - Man Page

#include <SDL3/SDL_hints.h>

void SDL_ResetHints(void);

This will reset all hints to the value of the associated environment variable, or NULL if the environment isn't set. Callbacks will be called normally with this change.

It is safe to call this function from any thread.

This function is available since SDL 3.2.0.

SDL_ResetHint(3)

SDL_ResetHint(3).