sdlGetNumJoystickBalls function

int sdlGetNumJoystickBalls(
  1. Pointer<SdlJoystick> joystick
)

Get the number of trackballs on a joystick.

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

Most joysticks do not have trackballs.

\param 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.

\since This function is available since SDL 3.1.3.

\sa SDL_GetJoystickBall \sa SDL_GetNumJoystickAxes \sa SDL_GetNumJoystickButtons \sa SDL_GetNumJoystickHats

extern SDL_DECLSPEC int SDLCALL SDL_GetNumJoystickBalls(SDL_Joystick *joystick)

Implementation

int sdlGetNumJoystickBalls(Pointer<SdlJoystick> joystick) {
  final sdlGetNumJoystickBallsLookupFunction = libSdl3.lookupFunction<
      Int32 Function(Pointer<SdlJoystick> joystick),
      int Function(Pointer<SdlJoystick> joystick)>('SDL_GetNumJoystickBalls');
  return sdlGetNumJoystickBallsLookupFunction(joystick);
}