SDL_SetJoystickVirtualBall3
Generate ball motion on an opened virtual joystick.
Usage
#include "SDL3/SDL.h"
bool SDL_SetJoystickVirtualBall(SDL_Joystick *joystick, int ball, Sint16 xrel, Sint16 yrel);
Header file
Defined in SDL3/SDL_joystick.h
Overview
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 .
Function parameters
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. |
Return value
Returns true on success or false on failure; call
SDL_GetError () for more information.