view docs/man3/SDL_JoystickGetAxis.3 @ 738:82b85b731fe3

Date: Mon, 10 Nov 2003 19:57:56 +0100 From: Stephane Marchesin <stephane.marchesin@wanadoo.fr> Subject: [SDL] SDL and gcc >= 3.3.1 fix Lately, I upgraded my gcc compiler and could trigger the error described in this thread : http://www.libsdl.org/pipermail/sdl/2003-September/056163.html SDL_RLEaccel.c: In function `RLEClipBlit': SDL_RLEaccel.c:845: error: invalid `asm': invalid expression as operand SDL_RLEaccel.c:845: error: invalid `asm': invalid expression as operand SDL_RLEaccel.c:845: error: invalid `asm': invalid expression as operand The attached patch fixes this issue, and is smaller than the previous one, as I was able to trigger the issue, so I could narrow it.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 14 Nov 2003 20:21:22 +0000
parents e5bc29de3f0a
children 546f7c1eb755
line wrap: on
line source

.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