Mercurial > sdl-ios-xcode
annotate docs/html/sdljoystickgetaxis.html @ 753:b14fdadd8311
Date: Thu, 4 Dec 2003 07:48:40 +0200
From: "Mike Gorchak"
Subject: SDL/QNX6 new patch
Here in attachment my patch for the SDL/QNX6 again :) It contain non-crtitical/cosmetic fixes:
1. Fixed window centering at other than the first consoles.
2. Fixed window centering algorithm in case when window height or width are greater than the desktop resolution.
3. Fixed window positioning on other than the first consoles.
4. Fixed occasional input focus lost when switching to fullscreen.
5. Removed the Photon's default chroma color for the overlays, added RGB(12, 6, 12) color instead (very dark pink).
6. Added more checks to the YUV overlay code (fixed crashes during resolution mode switches).
7. Added support for Enter/Backspace keys in unicode mode (used by Maelstrom and by other games).
8. Fixed window restore/maximize function. It works, finally.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 10 Dec 2003 12:35:56 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_JoystickGetAxis</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="Joystick" | |
| 14 HREF="joystick.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_JoystickUpdate" | |
| 17 HREF="sdljoystickupdate.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_JoystickGetHat" | |
| 20 HREF="sdljoystickgethat.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="REFENTRY" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
| 31 WIDTH="100%" | |
| 32 BORDER="0" | |
| 33 CELLPADDING="0" | |
| 34 CELLSPACING="0" | |
| 35 ><TR | |
| 36 ><TH | |
| 37 COLSPAN="3" | |
| 38 ALIGN="center" | |
| 39 >SDL Library Documentation</TH | |
| 40 ></TR | |
| 41 ><TR | |
| 42 ><TD | |
| 43 WIDTH="10%" | |
| 44 ALIGN="left" | |
| 45 VALIGN="bottom" | |
| 46 ><A | |
| 47 HREF="sdljoystickupdate.html" | |
| 48 >Prev</A | |
| 49 ></TD | |
| 50 ><TD | |
| 51 WIDTH="80%" | |
| 52 ALIGN="center" | |
| 53 VALIGN="bottom" | |
| 54 ></TD | |
| 55 ><TD | |
| 56 WIDTH="10%" | |
| 57 ALIGN="right" | |
| 58 VALIGN="bottom" | |
| 59 ><A | |
| 60 HREF="sdljoystickgethat.html" | |
| 61 >Next</A | |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><H1 | |
| 69 ><A | |
| 70 NAME="SDLJOYSTICKGETAXIS" | |
| 71 >SDL_JoystickGetAxis</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
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76 NAME="AEN5932" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_JoystickGetAxis -- Get the current state of an axis</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
|
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84 NAME="AEN5935" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
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91 NAME="AEN5936" |
| 0 | 92 ></A |
| 93 ><P | |
| 94 ></P | |
| 95 ><PRE | |
| 96 CLASS="FUNCSYNOPSISINFO" | |
| 97 >#include "SDL.h"</PRE | |
| 98 ><P | |
| 99 ><CODE | |
| 100 ><CODE | |
| 101 CLASS="FUNCDEF" | |
| 102 >Sint16 <B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_JoystickGetAxis</B | |
| 105 ></CODE | |
| 106 >(SDL_Joystick *joystick, int axis);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
|
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115 NAME="AEN5942" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
| 120 ><TT | |
| 121 CLASS="FUNCTION" | |
| 122 >SDL_JoystickGetAxis</TT | |
| 123 > returns the current state of the given <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >axis</I | |
| 127 ></TT | |
| 128 > on the given <TT | |
| 129 CLASS="PARAMETER" | |
| 130 ><I | |
| 131 >joystick</I | |
| 132 ></TT | |
| 133 >.</P | |
| 134 ><P | |
| 135 >On most modern joysticks the X axis is usually represented by <TT | |
| 136 CLASS="PARAMETER" | |
| 137 ><I | |
| 138 >axis</I | |
| 139 ></TT | |
| 140 > 0 and the Y axis by <TT | |
| 141 CLASS="PARAMETER" | |
| 142 ><I | |
| 143 >axis</I | |
| 144 ></TT | |
| 145 > 1. The value returned by <TT | |
| 146 CLASS="FUNCTION" | |
| 147 >SDL_JoystickGetAxis</TT | |
| 148 > is a signed integer (-32768 to 32768) representing the current position of the <TT | |
| 149 CLASS="PARAMETER" | |
| 150 ><I | |
| 151 >axis</I | |
| 152 ></TT | |
| 153 >, 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.</P | |
| 154 ></DIV | |
| 155 ><DIV | |
| 156 CLASS="REFSECT1" | |
| 157 ><A | |
|
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158 NAME="AEN5953" |
| 0 | 159 ></A |
| 160 ><H2 | |
| 161 >Return Value</H2 | |
| 162 ><P | |
| 163 >Returns a 16-bit signed integer representing the current position of the <TT | |
| 164 CLASS="PARAMETER" | |
| 165 ><I | |
| 166 >axis</I | |
| 167 ></TT | |
| 168 >.</P | |
| 169 ></DIV | |
| 170 ><DIV | |
| 171 CLASS="REFSECT1" | |
| 172 ><A | |
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173 NAME="AEN5957" |
| 0 | 174 ></A |
| 175 ><H2 | |
| 176 >Examples</H2 | |
| 177 ><P | |
| 178 ><PRE | |
| 179 CLASS="PROGRAMLISTING" | |
| 180 >Sint16 x_move, y_move; | |
| 181 SDL_Joystick *joy1; | |
| 182 . | |
| 183 . | |
| 184 x_move=SDL_JoystickGetAxis(joy1, 0); | |
| 185 y_move=SDL_JoystickGetAxis(joy1, 1);</PRE | |
| 186 ></P | |
| 187 ></DIV | |
| 188 ><DIV | |
| 189 CLASS="REFSECT1" | |
| 190 ><A | |
|
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191 NAME="AEN5961" |
| 0 | 192 ></A |
| 193 ><H2 | |
| 194 >See Also</H2 | |
| 195 ><P | |
| 196 ><A | |
| 197 HREF="sdljoysticknumaxes.html" | |
| 198 ><TT | |
| 199 CLASS="FUNCTION" | |
| 200 >SDL_JoystickNumAxes</TT | |
| 201 ></A | |
| 202 ></P | |
| 203 ></DIV | |
| 204 ><DIV | |
| 205 CLASS="NAVFOOTER" | |
| 206 ><HR | |
| 207 ALIGN="LEFT" | |
| 208 WIDTH="100%"><TABLE | |
| 209 WIDTH="100%" | |
| 210 BORDER="0" | |
| 211 CELLPADDING="0" | |
| 212 CELLSPACING="0" | |
| 213 ><TR | |
| 214 ><TD | |
| 215 WIDTH="33%" | |
| 216 ALIGN="left" | |
| 217 VALIGN="top" | |
| 218 ><A | |
| 219 HREF="sdljoystickupdate.html" | |
| 220 >Prev</A | |
| 221 ></TD | |
| 222 ><TD | |
| 223 WIDTH="34%" | |
| 224 ALIGN="center" | |
| 225 VALIGN="top" | |
| 226 ><A | |
| 227 HREF="index.html" | |
| 228 >Home</A | |
| 229 ></TD | |
| 230 ><TD | |
| 231 WIDTH="33%" | |
| 232 ALIGN="right" | |
| 233 VALIGN="top" | |
| 234 ><A | |
| 235 HREF="sdljoystickgethat.html" | |
| 236 >Next</A | |
| 237 ></TD | |
| 238 ></TR | |
| 239 ><TR | |
| 240 ><TD | |
| 241 WIDTH="33%" | |
| 242 ALIGN="left" | |
| 243 VALIGN="top" | |
| 244 >SDL_JoystickUpdate</TD | |
| 245 ><TD | |
| 246 WIDTH="34%" | |
| 247 ALIGN="center" | |
| 248 VALIGN="top" | |
| 249 ><A | |
| 250 HREF="joystick.html" | |
| 251 >Up</A | |
| 252 ></TD | |
| 253 ><TD | |
| 254 WIDTH="33%" | |
| 255 ALIGN="right" | |
| 256 VALIGN="top" | |
| 257 >SDL_JoystickGetHat</TD | |
| 258 ></TR | |
| 259 ></TABLE | |
| 260 ></DIV | |
| 261 ></BODY | |
| 262 ></HTML | |
| 263 > |