Manual Pages for UNIX Operating System command usage for man SDL_JoystickGetAxis

SDL API Reference                          SDL_JoystickGetAxis(3)



NAME
     SDL_JoystickGetAxis - Get the current state of an axis

SYNOPSIS
     #include "SDL.h"

     Sint16   SDL_JoystickGetAxis(SDL_Joystick   *joystick,   int
     axis);

DESCRIPTION
     SDL_JoystickGetAxis returns the current state of  the  given
     axis on the given joystick.

     On most modern joysticks the X axis is  usually  represented
     by  axis  0  and the Y axis by axis 1. The value returned by
     SDL_JoystickGetAxis is a signed integer  (-32768  to  32768)
     representing  the  current  position  of  the axis, it maybe
     necessary to impose certain tolerances on  these  values  to
     account  for  jitter. It is worth noting that some joysticks
     use axes 2 and 3 for extra buttons.

RETURN VALUE
     Returns a 16-bit signed  integer  representing  the  current
     position of the axis.

EXAMPLES
     Sint16 x_move, y_move;
     SDL_Joystick *joy1;
     .
     .
     x_move=SDL_JoystickGetAxis(joy1, 0);
     y_move=SDL_JoystickGetAxis(joy1, 1);

SEE ALSO
     SDL_JoystickNumAxes




















SDL            Last change: Tue 11 Sep 2001, 23:00              1