SDL_Joystick Get Axis(3) - Waikato Linux Users Group

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SDL_!JoystickGetAxis?

NAME SYNOPSIS DESCRIPTION RETURN VALUE EXAMPLES SEE ALSO

NAME

SDL_!JoystickGetAxis?- Get the current state of an axis

SYNOPSIS

#include

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);