Get a list of registered touch devices.
Defined in <SDL3/SDL_touch.h>
const SDL_TouchID * SDL_GetTouchDevices(int *count);
int * | count | a pointer filled in with the number of devices returned, may be NULL. |
(const SDL_TouchID *) Returns a 0 terminated array of touch device IDs or NULL on failure; call SDL_GetError() for more information.
On some platforms SDL first sees the touch device if it was actually used. Therefore the returned list might be empty, although devices are available. After using all devices at least once the number will be correct.
This function is available since SDL 3.0.0.