Open a haptic device for use.
Defined in <SDL3/SDL_haptic.h>
instance_id | the haptic device instance ID |
Returns the device identifier or NULL on failure; call SDL_GetError() for more information.
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().
This function is available since SDL 3.0.0.