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

SDL_JoyBallEvent

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

Header File

Defined in SDL_events.h

Syntax

typedef struct SDL_JoyBallEvent
{
    Uint32 type;        /**< SDL_JOYBALLMOTION */
    Uint32 timestamp;   /**< In milliseconds, populated using SDL_GetTicks() */
    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;

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CategoryAPI, CategoryAPIStruct, CategoryEvents

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