SDL Wiki
(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)


Update the properties of an effect.


int SDL_HapticUpdateEffect(SDL_Haptic * haptic,
                           int effect,
                           SDL_HapticEffect * data);

Function Parameters

haptic the SDL_Haptic device that has the effect
effect the identifier of the effect to update
data an SDL_HapticEffect structure containing the new effect properties to use

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.


Can be used dynamically, although behavior when dynamically changing direction may be strange. Specifically the effect may re-upload itself and start playing from the start. You also cannot change the type either when running SDL_HapticUpdateEffect().


This function is available since SDL 2.0.0.


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