annotate docs/html/sdljoystickopen.html @ 172:37e3ca9254c7

Date: Sat, 8 Sep 2001 04:42:23 +0200 From: Max Horn <max@quendi.de> Subject: SDL/OSX: Joystick; Better key handling I just finished implementing improved keyhandling for OS X (in fact the code should be easily ported to the "normal" MacOS part of SDL, I just had no chance yet). Works like this: First init the mapping table statically like before. Them, it queries the OS for the "official" key table, then iterates over all 127 scancode and gets the associates ascii code. It ignores everythng below 32 (has to, as it would lead to many problems if we did not... e.g. both ESC and NUM LOCk produce an ascii code 27 on my keyboard), and all stuff above 127 is mapped to SDLK_WORLD_* simply in the order it is encountered. In addition, caps lock is now working, too. The code work flawless for me, but since I only have one keyboard, I may have not encountered some serious problem... but I am pretty confident that it is better than the old code in most cases. The joystick driver works fine for me, too. I think it can be added to CVS already. It would simply be helpful if more people would test it. Hm, I wonder if Maelstrom or GLTron has Joystick support? That would be a wonderful test application :) I also took the liberty of modifying some text files like BUGS, README.CVS, README.MacOSX (which now contains the OS X docs I long promised)
author Sam Lantinga <slouken@libsdl.org>
date Tue, 11 Sep 2001 19:00:18 +0000
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4 >SDL_JoystickOpen</TITLE
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8 "><LINK
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9 REL="HOME"
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10 TITLE="SDL Library Documentation"
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13 TITLE="Joystick"
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14 HREF="joystick.html"><LINK
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16 TITLE="SDL_JoystickName"
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17 HREF="sdljoystickname.html"><LINK
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19 TITLE="SDL_JoystickOpened"
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20 HREF="sdljoystickopened.html"></HEAD
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38 ALIGN="center"
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39 >SDL Library Documentation</TH
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40 ></TR
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46 ><A
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47 HREF="sdljoystickname.html"
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48 >Prev</A
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49 ></TD
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59 ><A
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60 HREF="sdljoystickopened.html"
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61 >Next</A
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62 ></TD
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68 ><H1
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69 ><A
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70 NAME="SDLJOYSTICKOPEN"
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71 >SDL_JoystickOpen</A
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72 ></H1
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74 CLASS="REFNAMEDIV"
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75 ><A
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78 ><H2
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79 >Name</H2
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80 >SDL_JoystickOpen&nbsp;--&nbsp;Opens a joystick for use.</DIV
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81 ><DIV
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82 CLASS="REFSYNOPSISDIV"
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83 ><A
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86 ><H2
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87 >Synopsis</H2
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88 ><DIV
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89 CLASS="FUNCSYNOPSIS"
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90 ><A
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93 ><P
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94 ></P
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95 ><PRE
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96 CLASS="FUNCSYNOPSISINFO"
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97 >#include "SDL.h"</PRE
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98 ><P
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99 ><CODE
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100 ><CODE
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101 CLASS="FUNCDEF"
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102 >SDL_Joystick *<B
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103 CLASS="FSFUNC"
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104 >SDL_JoystickOpen</B
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105 ></CODE
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106 >(int index);</CODE
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107 ></P
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108 ><P
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109 ></P
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110 ></DIV
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111 ></DIV
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112 ><DIV
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113 CLASS="REFSECT1"
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114 ><A
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116 ></A
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117 ><H2
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118 >Description</H2
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119 ><P
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120 >Opens a joystick for use within SDL. The <TT
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121 CLASS="PARAMETER"
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122 ><I
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123 >index</I
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124 ></TT
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125 > refers to the N'th joystick in the system. A joystick must be opened before it game be used.</P
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126 ></DIV
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127 ><DIV
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128 CLASS="REFSECT1"
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129 ><A
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131 ></A
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132 ><H2
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133 >Return Value</H2
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134 ><P
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135 >Returns a <SPAN
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136 CLASS="STRUCTNAME"
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137 >SDL_Joystick</SPAN
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138 > structure on success. <SPAN
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139 CLASS="RETURNVALUE"
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140 >NULL</SPAN
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141 > on failure.</P
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142 ></DIV
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143 ><DIV
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144 CLASS="REFSECT1"
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145 ><A
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146 NAME="AEN5568"
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147 ></A
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148 ><H2
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149 >Examples</H2
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150 ><P
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151 ><PRE
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152 CLASS="PROGRAMLISTING"
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153 >SDL_Joystick *joy;
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154 // Check for joystick
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155 if(SDL_NumJoysticks()&#62;0){
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156 // Open joystick
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157 joy=SDL_JoystickOpen(0);
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158
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159 if(joy)
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160 {
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161 printf("Opened Joystick 0\n");
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162 printf("Name: %s\n", SDL_JoystickName(0));
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163 printf("Number of Axes: %s\n", SDL_JoystickNumAxes(joy));
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164 printf("Number of Buttons: %s\n", SDL_JoystickNumButtons(joy));
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165 printf("Number of Balls: %s\n", SDL_JoystickNumBalls(joy));
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166 }
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167 else
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168 printf("Couldn't open Joystick 0\n");
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169
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170 // Close if opened
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171 if(SDL_JoystickOpened(0))
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172 SDL_JoystickClose(joy);
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173 }</PRE
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174 ></P
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175 ></DIV
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176 ><DIV
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177 CLASS="REFSECT1"
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178 ><A
55
55f1f1b3e27d Added new docs for SDL 1.2.1
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179 NAME="AEN5572"
0
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180 ></A
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181 ><H2
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182 >See Also</H2
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183 ><P
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184 ><A
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185 HREF="sdljoystickclose.html"
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186 ><TT
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187 CLASS="FUNCTION"
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188 >SDL_JoystickClose</TT
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189 ></A
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190 ></P
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191 ></DIV
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192 ><DIV
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193 CLASS="NAVFOOTER"
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194 ><HR
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195 ALIGN="LEFT"
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196 WIDTH="100%"><TABLE
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197 WIDTH="100%"
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198 BORDER="0"
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199 CELLPADDING="0"
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200 CELLSPACING="0"
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201 ><TR
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202 ><TD
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203 WIDTH="33%"
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204 ALIGN="left"
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205 VALIGN="top"
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206 ><A
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207 HREF="sdljoystickname.html"
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208 >Prev</A
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209 ></TD
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210 ><TD
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211 WIDTH="34%"
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212 ALIGN="center"
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213 VALIGN="top"
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214 ><A
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215 HREF="index.html"
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216 >Home</A
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217 ></TD
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218 ><TD
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219 WIDTH="33%"
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220 ALIGN="right"
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221 VALIGN="top"
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222 ><A
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223 HREF="sdljoystickopened.html"
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224 >Next</A
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225 ></TD
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226 ></TR
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227 ><TR
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228 ><TD
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229 WIDTH="33%"
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230 ALIGN="left"
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231 VALIGN="top"
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232 >SDL_JoystickName</TD
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233 ><TD
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234 WIDTH="34%"
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235 ALIGN="center"
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236 VALIGN="top"
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237 ><A
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238 HREF="joystick.html"
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239 >Up</A
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240 ></TD
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241 ><TD
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242 WIDTH="33%"
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243 ALIGN="right"
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244 VALIGN="top"
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245 >SDL_JoystickOpened</TD
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246 ></TR
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247 ></TABLE
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248 ></DIV
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249 ></BODY
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250 ></HTML
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251 >