###### (This is the legacy documentation for stable SDL2, the current stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current development version.) # SDL_HapticOpened Check if the haptic device at the designated index has been opened. ## Header File Defined in [SDL_haptic.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_haptic.h), but apps should _only_ `#include "SDL.h"`! ## Syntax ```c int SDL_HapticOpened(int device_index); ``` ## Function Parameters | | | | -------------------- | -------------------------------- | | **device_index** | the index of the device to query | ## Return Value Returns 1 if it has been opened, 0 if it hasn't or on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Version This function is available since SDL 2.0.0. ## See Also * [SDL_HapticIndex](SDL_HapticIndex) * [SDL_HapticOpen](SDL_HapticOpen) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction)