view docs/man3/SDL_JoystickGetAxis.3 @ 4107:4e3b250c950e SDL-1.2

Erik Heckers fixed bug #493 Searching the installed man pages for SDL functions fails, e.g. man -k SDL_ |grep Video After investigating this I found that "makewhatis", the tool that generates the "whatis" database, reads the SDL_* man pages, but doesn't produce entries in the "whatis" database for the SDL_* man pages. After some more debugging I found the reason is a missing space. After editing SDL_Init.3(.gz) and replacing SDL_Init\- Initializes SDL with SDL_Init \- Initializes SDL everything works fine. After running "makewhatis" I can successfully do a man -k SDL_ and SDL_Init is listed in the output.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 29 Dec 2007 02:34:53 +0000
parents e5bc29de3f0a
children 1238da4a7112
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