Mercurial > sdl-ios-xcode
view docs/man3/SDL_JoystickGetAxis.3 @ 998:0e6627072f7a
Date: Wed, 24 Nov 2004 01:25:48 +0100
From: Stephane Marchesin
Subject: Re: [SDL] Problem compiling SDL 1.2.7
- there is a bug that was introduced in the kernel headers for 2.6.9
which is fixed in 2.6.10. This bug *will* byte when compiling the cdrom
subsystem. A patch that works around this bug is attached. Note that
users affected are not those running 2.6.9, but those using the 2.6.9
kernel headers for their system (i.e. whose libc is built against 2.6.9
headers).
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 30 Nov 2004 14:45:08 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
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.TH "SDL_JoystickGetAxis" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_JoystickGetAxis\- Get the current state of an axis .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBSint16 \fBSDL_JoystickGetAxis\fP\fR(\fBSDL_Joystick *joystick, int axis\fR); .SH "DESCRIPTION" .PP \fBSDL_JoystickGetAxis\fP returns the current state of the given \fBaxis\fR on the given \fBjoystick\fR\&. .PP On most modern joysticks the X axis is usually represented by \fBaxis\fR 0 and the Y axis by \fBaxis\fR 1\&. The value returned by \fBSDL_JoystickGetAxis\fP is a signed integer (-32768 to 32768) representing the current position of the \fBaxis\fR, 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\&. .SH "RETURN VALUE" .PP Returns a 16-bit signed integer representing the current position of the \fBaxis\fR\&. .SH "EXAMPLES" .PP .PP .nf \f(CWSint16 x_move, y_move; SDL_Joystick *joy1; \&. \&. x_move=SDL_JoystickGetAxis(joy1, 0); y_move=SDL_JoystickGetAxis(joy1, 1);\fR .fi .PP .SH "SEE ALSO" .PP \fI\fBSDL_JoystickNumAxes\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00