Provided by: libsdl3-doc_3.2.26+ds-2_all 

NAME
SDL_OpenHaptic - Open a haptic device for use.
SYNOPSIS
#include <SDL3/SDL_haptic.h>
SDL_Haptic * SDL_OpenHaptic(SDL_HapticID instance_id);
DESCRIPTION
The index passed as an argument refers to the N'th haptic device on this system.
When opening a haptic device, its gain will be set to maximum and autocenter will be disabled. To modify
these values use SDL_SetHapticGain() and SDL_SetHapticAutocenter().
FUNCTION PARAMETERS
instance_id
the haptic device instance ID.
RETURN VALUE
Returns the device identifier or NULL on failure; call SDL_GetError() for more information.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_CloseHaptic(3), SDL_GetHaptics(3), SDL_OpenHapticFromJoystick(3), SDL_OpenHapticFromMouse(3),
SDL_SetHapticAutocenter(3), SDL_SetHapticGain(3)
Simple Directmedia Layer SDL 3.2.26 SDL_OpenHaptic(3)