(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_JoyBallEvent

Joystick trackball motion event structure (event.jball.*)

Header File

Defined in SDL_events.h, but apps should use #include <SDL3/SDL.h>

Syntax

typedef struct SDL_JoyBallEvent
{
    SDL_EventType type; /**< ::SDL_EVENT_JOYSTICK_BALL_MOTION */
    Uint32 reserved;
    Uint64 timestamp;   /**< In nanoseconds, populated using SDL_GetTicksNS() */
    SDL_JoystickID which; /**< The joystick instance id */
    Uint8 ball;         /**< The joystick trackball index */
    Uint8 padding1;
    Uint8 padding2;
    Uint8 padding3;
    Sint16 xrel;        /**< The relative motion in the X direction */
    Sint16 yrel;        /**< The relative motion in the Y direction */
} SDL_JoyBallEvent;

Version

This struct is available since SDL 3.0.0.

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CategoryAPI, CategoryAPIStruct

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