Mercurial > sdl-ios-xcode
annotate docs/html/sdljoystickopen.html @ 3092:cad1aefa2ed9
Date: Thu, 12 Mar 2009 15:14:38 +0200
From: "Mike Gorchak"
Subject: New QNX patches
In photon.tar.gz there are new files to be placed into ./src/video/photon/
directory.
qnx3.diff - new patches for QNX support. Since I've found a lot of bugs in
the new GF QNX Graphics Framework and I'm suspended development for GF
driver until already found bugs will be fixed and switched to Photon driver
implementation.
sdl.diff - I've found that renderer creation result has not been checked and
SDL shows error like: "there is no current renderer", now SDL will show
correct error which was set be renderer.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 17 Mar 2009 03:24:22 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_JoystickOpen</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
| 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_JoystickName" | |
| 17 HREF="sdljoystickname.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_JoystickOpened" | |
| 20 HREF="sdljoystickopened.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 | |
|
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31 SUMMARY="Header navigation table" |
| 0 | 32 WIDTH="100%" |
| 33 BORDER="0" | |
| 34 CELLPADDING="0" | |
| 35 CELLSPACING="0" | |
| 36 ><TR | |
| 37 ><TH | |
| 38 COLSPAN="3" | |
| 39 ALIGN="center" | |
| 40 >SDL Library Documentation</TH | |
| 41 ></TR | |
| 42 ><TR | |
| 43 ><TD | |
| 44 WIDTH="10%" | |
| 45 ALIGN="left" | |
| 46 VALIGN="bottom" | |
| 47 ><A | |
| 48 HREF="sdljoystickname.html" | |
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49 ACCESSKEY="P" |
| 0 | 50 >Prev</A |
| 51 ></TD | |
| 52 ><TD | |
| 53 WIDTH="80%" | |
| 54 ALIGN="center" | |
| 55 VALIGN="bottom" | |
| 56 ></TD | |
| 57 ><TD | |
| 58 WIDTH="10%" | |
| 59 ALIGN="right" | |
| 60 VALIGN="bottom" | |
| 61 ><A | |
| 62 HREF="sdljoystickopened.html" | |
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63 ACCESSKEY="N" |
| 0 | 64 >Next</A |
| 65 ></TD | |
| 66 ></TR | |
| 67 ></TABLE | |
| 68 ><HR | |
| 69 ALIGN="LEFT" | |
| 70 WIDTH="100%"></DIV | |
| 71 ><H1 | |
| 72 ><A | |
| 73 NAME="SDLJOYSTICKOPEN" | |
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74 ></A |
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75 >SDL_JoystickOpen</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN6096" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_JoystickOpen -- Opens a joystick for use.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN6099" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN6100" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h"</PRE | |
| 101 ><P | |
| 102 ><CODE | |
| 103 ><CODE | |
| 104 CLASS="FUNCDEF" | |
| 105 >SDL_Joystick *<B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_JoystickOpen</B | |
| 108 ></CODE | |
| 109 >(int index);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN6106" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Opens a joystick for use within SDL. The <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >index</I | |
| 127 ></TT | |
| 128 > refers to the N'th joystick in the system. A joystick must be opened before it game be used.</P | |
| 129 ></DIV | |
| 130 ><DIV | |
| 131 CLASS="REFSECT1" | |
| 132 ><A | |
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133 NAME="AEN6110" |
| 0 | 134 ></A |
| 135 ><H2 | |
| 136 >Return Value</H2 | |
| 137 ><P | |
| 138 >Returns a <SPAN | |
| 139 CLASS="STRUCTNAME" | |
| 140 >SDL_Joystick</SPAN | |
| 141 > structure on success. <SPAN | |
| 142 CLASS="RETURNVALUE" | |
| 143 >NULL</SPAN | |
| 144 > on failure.</P | |
| 145 ></DIV | |
| 146 ><DIV | |
| 147 CLASS="REFSECT1" | |
| 148 ><A | |
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149 NAME="AEN6115" |
| 0 | 150 ></A |
| 151 ><H2 | |
| 152 >Examples</H2 | |
| 153 ><P | |
| 154 ><PRE | |
| 155 CLASS="PROGRAMLISTING" | |
| 156 >SDL_Joystick *joy; | |
| 157 // Check for joystick | |
| 158 if(SDL_NumJoysticks()>0){ | |
| 159 // Open joystick | |
| 160 joy=SDL_JoystickOpen(0); | |
| 161 | |
| 162 if(joy) | |
| 163 { | |
| 164 printf("Opened Joystick 0\n"); | |
| 165 printf("Name: %s\n", SDL_JoystickName(0)); | |
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166 printf("Number of Axes: %d\n", SDL_JoystickNumAxes(joy)); |
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167 printf("Number of Buttons: %d\n", SDL_JoystickNumButtons(joy)); |
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168 printf("Number of Balls: %d\n", SDL_JoystickNumBalls(joy)); |
| 0 | 169 } |
| 170 else | |
| 171 printf("Couldn't open Joystick 0\n"); | |
| 172 | |
| 173 // Close if opened | |
| 174 if(SDL_JoystickOpened(0)) | |
| 175 SDL_JoystickClose(joy); | |
| 176 }</PRE | |
| 177 ></P | |
| 178 ></DIV | |
| 179 ><DIV | |
| 180 CLASS="REFSECT1" | |
| 181 ><A | |
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182 NAME="AEN6119" |
| 0 | 183 ></A |
| 184 ><H2 | |
| 185 >See Also</H2 | |
| 186 ><P | |
| 187 ><A | |
| 188 HREF="sdljoystickclose.html" | |
| 189 ><TT | |
| 190 CLASS="FUNCTION" | |
| 191 >SDL_JoystickClose</TT | |
| 192 ></A | |
| 193 ></P | |
| 194 ></DIV | |
| 195 ><DIV | |
| 196 CLASS="NAVFOOTER" | |
| 197 ><HR | |
| 198 ALIGN="LEFT" | |
| 199 WIDTH="100%"><TABLE | |
|
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200 SUMMARY="Footer navigation table" |
| 0 | 201 WIDTH="100%" |
| 202 BORDER="0" | |
| 203 CELLPADDING="0" | |
| 204 CELLSPACING="0" | |
| 205 ><TR | |
| 206 ><TD | |
| 207 WIDTH="33%" | |
| 208 ALIGN="left" | |
| 209 VALIGN="top" | |
| 210 ><A | |
| 211 HREF="sdljoystickname.html" | |
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212 ACCESSKEY="P" |
| 0 | 213 >Prev</A |
| 214 ></TD | |
| 215 ><TD | |
| 216 WIDTH="34%" | |
| 217 ALIGN="center" | |
| 218 VALIGN="top" | |
| 219 ><A | |
| 220 HREF="index.html" | |
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221 ACCESSKEY="H" |
| 0 | 222 >Home</A |
| 223 ></TD | |
| 224 ><TD | |
| 225 WIDTH="33%" | |
| 226 ALIGN="right" | |
| 227 VALIGN="top" | |
| 228 ><A | |
| 229 HREF="sdljoystickopened.html" | |
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230 ACCESSKEY="N" |
| 0 | 231 >Next</A |
| 232 ></TD | |
| 233 ></TR | |
| 234 ><TR | |
| 235 ><TD | |
| 236 WIDTH="33%" | |
| 237 ALIGN="left" | |
| 238 VALIGN="top" | |
| 239 >SDL_JoystickName</TD | |
| 240 ><TD | |
| 241 WIDTH="34%" | |
| 242 ALIGN="center" | |
| 243 VALIGN="top" | |
| 244 ><A | |
| 245 HREF="joystick.html" | |
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246 ACCESSKEY="U" |
| 0 | 247 >Up</A |
| 248 ></TD | |
| 249 ><TD | |
| 250 WIDTH="33%" | |
| 251 ALIGN="right" | |
| 252 VALIGN="top" | |
| 253 >SDL_JoystickOpened</TD | |
| 254 ></TR | |
| 255 ></TABLE | |
| 256 ></DIV | |
| 257 ></BODY | |
| 258 ></HTML | |
| 259 > |