SDL_GetNumJoystickBalls - Man Page

Defined in SDL3/SDL_joystick.h

#include "SDL3/SDL.h"

int SDL_GetNumJoystickBalls(SDL_Joystick *joystick);

Joystick trackballs have only relative motion events associated with them and their state cannot be polled.

Most joysticks do not have trackballs.

joystick

an SDL_Joystick
structure containing joystick information.

Returns the number of trackballs on success or -1 on failure; call

SDL_GetError () for more information.

This function is available since SDL 3.2.0.

·(3), SDL_GetJoystickBall(3), ·(3), SDL_GetNumJoystickAxes(3), ·(3), SDL_GetNumJoystickButtons(3), ·(3), SDL_GetNumJoystickHats(3)

SDL_GetJoystickBall(3), SDL_GetNumJoystickAxes(3), SDL_GetNumJoystickButtons(3), SDL_GetNumJoystickHats(3).