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- experimental 3.1.0+ds-1
SDL_GetJoystickBall(3) | SDL3 FUNCTIONS | SDL_GetJoystickBall(3) |
NAME¶
SDL_GetJoystickBall - Get the ball axis change since the last poll.
SYNOPSIS¶
#include "SDL3/SDL.h"
int SDL_GetJoystickBall(SDL_Joystick *joystick, int ball, int *dx, int *dy);
DESCRIPTION¶
Trackballs can only return relative motion since the last call to
SDL_GetJoystickBall (), these motion deltas are placed into dx and dy .
Most joysticks do not have trackballs.
FUNCTION PARAMETERS¶
RETURN VALUE¶
Returns 0 on success or a negative error code on failure; call
SDL_GetError () for more information.
AVAILABILITY¶
This function is available since SDL 3.0.0.
SEE ALSO¶
SDL 3.1.0 | SDL |