SDL Wiki
(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_TouchFingerEvent

Touch finger event structure (event.tfinger.*)

Header File

Defined in [SDL_events.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_events.h), but apps should _only_ `#include "SDL.h"`!

Syntax

typedef struct SDL_TouchFingerEvent
{
    Uint32 type;        /**< ::SDL_FINGERMOTION or ::SDL_FINGERDOWN or ::SDL_FINGERUP */
    Uint32 timestamp;   /**< In milliseconds, populated using SDL_GetTicks() */
    SDL_TouchID touchId; /**< The touch device id */
    SDL_FingerID fingerId;
    float x;            /**< Normalized in the range 0...1 */
    float y;            /**< Normalized in the range 0...1 */
    float dx;           /**< Normalized in the range -1...1 */
    float dy;           /**< Normalized in the range -1...1 */
    float pressure;     /**< Normalized in the range 0...1 */
    Uint32 windowID;    /**< The window underneath the finger, if any */
} SDL_TouchFingerEvent;

Data Fields

Uint32

type

SDL_FINGERMOTION, SDL_FINGERDOWN, or SDL_FINGERUP

Uint32

timestamp

timestamp of the event

SDL_TouchID

touchId

the touch device id

SDL_FingerID

fingerId

the finger 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

dx

the distance moved in the x-axis, normalized (-1...1)

float

dy

the distance moved in the y-axis, normalized (-1...1)

float

pressure

the quantity of pressure applied, normalized (0...1)

Uint32

windowID

the window underneath the finger, if any

SDL_EventType
SDL_Event

CategoryAPI, CategoryAPIStruct, CategoryStruct, CategoryEvents


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