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(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


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Add a function to watch a particular hint.


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.


This function is available since SDL 3.0.0.

CategoryAPI, CategoryHints, CategoryDraft

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