SDL_AddHintCallback - Man Page

Add a function to watch a particular hint.

Synopsis

#include <SDL3/SDL_hints.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

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

SDL_RemoveHintCallback(3)

Referenced By

SDL_HintCallback.3type(3), SDL_RemoveHintCallback(3).

SDL 3.2.16 Simple Directmedia Layer SDL3 FUNCTIONS