Generate ball motion on an opened virtual joystick.
Defined in <SDL3/SDL_joystick.h>
int ball, Sint16 xrel, Sint16 yrel); SDL_bool SDL_SetJoystickVirtualBall(SDL_Joystick *joystick,
SDL_Joystick * | joystick | the virtual joystick on which to set state. |
int | ball | the index of the ball on the virtual joystick to update. |
Sint16 | xrel | the relative motion on the X axis. |
Sint16 | yrel | the relative motion on the Y axis. |
(SDL_bool) Returns SDL_TRUE on success or SDL_FALSE on failure; call SDL_GetError() for more information.
Please note that values set here will not be applied until the next call to SDL_UpdateJoysticks, which can either be called directly, or can be called indirectly through various other SDL APIs, including, but not limited to the following: SDL_PollEvent, SDL_PumpEvents, SDL_WaitEventTimeout, SDL_WaitEvent.
This function is available since SDL 3.0.0.