SDL_SetJoystickVirtualBall - Man Page

#include <SDL3/SDL_joystick.h>

bool SDL_SetJoystickVirtualBall(SDL_Joystick *joystick, int ball, Sint16 xrel, Sint16 yrel);

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.

joystick

the virtual joystick on which to set state.

ball

the index of the ball on the virtual joystick to update.

xrel

the relative motion on the X axis.

yrel

the relative motion on the Y axis.

for more information.

This function is available since SDL 3.2.0.