Data about a single finger in a multitouch event.
Defined in <SDL3/SDL_touch.h>
typedef struct SDL_Finger
{/**< the finger ID */
SDL_FingerID id; float x; /**< the x-axis location of the touch event, normalized (0...1) */
float y; /**< the y-axis location of the touch event, normalized (0...1) */
float pressure; /**< the quantity of pressure applied, normalized (0...1) */
} SDL_Finger;
Each touch even is a collection of fingers that are simultaneously in contact with the touch device (so a "touch" can be a "multitouch," in reality), and this struct reports details of the specific fingers.
This struct is available since SDL 3.1.3.