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annotate docs/html/sdljoyballevent.html @ 553:417f8709e648
There's a bug in the VC7 optimizer relating to the duff loop optimization
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 02 Dec 2002 02:40:58 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_JoyBallEvent</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="SDL Event Structures." | |
| 14 HREF="eventstructures.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_JoyHatEvent" | |
| 17 HREF="sdljoyhatevent.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_ResizeEvent" | |
| 20 HREF="sdlresizeevent.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="sdljoyhatevent.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="sdlresizeevent.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="SDLJOYBALLEVENT" | |
| 71 >SDL_JoyBallEvent</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
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76 NAME="AEN4012" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_JoyBallEvent -- Joystick trackball motion event structure</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSECT1" | |
| 83 ><A | |
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84 NAME="AEN4015" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Structure Definition</H2 | |
| 88 ><PRE | |
| 89 CLASS="PROGRAMLISTING" | |
| 90 >typedef struct{ | |
| 91 Uint8 type; | |
| 92 Uint8 which; | |
| 93 Uint8 ball; | |
| 94 Sint16 xrel, yrel; | |
| 95 } SDL_JoyBallEvent;</PRE | |
| 96 ></DIV | |
| 97 ><DIV | |
| 98 CLASS="REFSECT1" | |
| 99 ><A | |
|
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100 NAME="AEN4018" |
| 0 | 101 ></A |
| 102 ><H2 | |
| 103 >Structure Data</H2 | |
| 104 ><DIV | |
| 105 CLASS="INFORMALTABLE" | |
| 106 ><A | |
|
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107 NAME="AEN4020" |
| 0 | 108 ></A |
| 109 ><P | |
| 110 ></P | |
| 111 ><TABLE | |
| 112 BORDER="0" | |
| 113 CLASS="CALSTABLE" | |
| 114 ><TBODY | |
| 115 ><TR | |
| 116 ><TD | |
| 117 ALIGN="LEFT" | |
| 118 VALIGN="TOP" | |
| 119 ><TT | |
| 120 CLASS="STRUCTFIELD" | |
| 121 ><I | |
| 122 >type</I | |
| 123 ></TT | |
| 124 ></TD | |
| 125 ><TD | |
| 126 ALIGN="LEFT" | |
| 127 VALIGN="TOP" | |
| 128 ><TT | |
| 129 CLASS="LITERAL" | |
| 130 >SDL_JOYBALLMOTION</TT | |
| 131 ></TD | |
| 132 ></TR | |
| 133 ><TR | |
| 134 ><TD | |
| 135 ALIGN="LEFT" | |
| 136 VALIGN="TOP" | |
| 137 ><TT | |
| 138 CLASS="STRUCTFIELD" | |
| 139 ><I | |
| 140 >which</I | |
| 141 ></TT | |
| 142 ></TD | |
| 143 ><TD | |
| 144 ALIGN="LEFT" | |
| 145 VALIGN="TOP" | |
| 146 >Joystick device index</TD | |
| 147 ></TR | |
| 148 ><TR | |
| 149 ><TD | |
| 150 ALIGN="LEFT" | |
| 151 VALIGN="TOP" | |
| 152 ><TT | |
| 153 CLASS="STRUCTFIELD" | |
| 154 ><I | |
| 155 >ball</I | |
| 156 ></TT | |
| 157 ></TD | |
| 158 ><TD | |
| 159 ALIGN="LEFT" | |
| 160 VALIGN="TOP" | |
| 161 >Joystick trackball index</TD | |
| 162 ></TR | |
| 163 ><TR | |
| 164 ><TD | |
| 165 ALIGN="LEFT" | |
| 166 VALIGN="TOP" | |
| 167 ><TT | |
| 168 CLASS="STRUCTFIELD" | |
| 169 ><I | |
| 170 >xrel</I | |
| 171 ></TT | |
| 172 >, <TT | |
| 173 CLASS="STRUCTFIELD" | |
| 174 ><I | |
| 175 >yrel</I | |
| 176 ></TT | |
| 177 ></TD | |
| 178 ><TD | |
| 179 ALIGN="LEFT" | |
| 180 VALIGN="TOP" | |
| 181 >The relative motion in the X/Y direction</TD | |
| 182 ></TR | |
| 183 ></TBODY | |
| 184 ></TABLE | |
| 185 ><P | |
| 186 ></P | |
| 187 ></DIV | |
| 188 ></DIV | |
| 189 ><DIV | |
| 190 CLASS="REFSECT1" | |
| 191 ><A | |
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192 NAME="AEN4041" |
| 0 | 193 ></A |
| 194 ><H2 | |
| 195 >Description</H2 | |
| 196 ><P | |
| 197 ><SPAN | |
| 198 CLASS="STRUCTNAME" | |
| 199 >SDL_JoyBallEvent</SPAN | |
| 200 > is a member of the <A | |
| 201 HREF="sdlevent.html" | |
| 202 ><SPAN | |
| 203 CLASS="STRUCTNAME" | |
| 204 >SDL_Event</SPAN | |
| 205 ></A | |
| 206 > union and is used when an event of type <TT | |
| 207 CLASS="LITERAL" | |
| 208 >SDL_JOYBALLMOTION</TT | |
| 209 > is reported.</P | |
| 210 ><P | |
| 211 >A <TT | |
| 212 CLASS="LITERAL" | |
| 213 >SDL_JOYBALLMOTION</TT | |
| 214 > event occurs when a user moves a trackball on the joystick. The field <TT | |
| 215 CLASS="STRUCTFIELD" | |
| 216 ><I | |
| 217 >which</I | |
| 218 ></TT | |
| 219 > is the index of the joystick that reported the event and <TT | |
| 220 CLASS="STRUCTFIELD" | |
| 221 ><I | |
| 222 >ball</I | |
| 223 ></TT | |
| 224 > is the index of the trackball (for a more detailed explaination see the <A | |
| 225 HREF="joystick.html" | |
| 226 >Joystick section</A | |
| 227 >). Trackballs only return relative motion, this is the change in position on the ball since it was last polled (last cycle of the event loop) and it is stored in <TT | |
| 228 CLASS="STRUCTFIELD" | |
| 229 ><I | |
| 230 >xrel</I | |
| 231 ></TT | |
| 232 > and <TT | |
| 233 CLASS="STRUCTFIELD" | |
| 234 ><I | |
| 235 >yrel</I | |
| 236 ></TT | |
| 237 >.</P | |
| 238 ></DIV | |
| 239 ><DIV | |
| 240 CLASS="REFSECT1" | |
| 241 ><A | |
|
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242 NAME="AEN4055" |
| 0 | 243 ></A |
| 244 ><H2 | |
| 245 >See Also</H2 | |
| 246 ><P | |
| 247 ><A | |
| 248 HREF="sdlevent.html" | |
| 249 ><SPAN | |
| 250 CLASS="STRUCTNAME" | |
| 251 >SDL_Event</SPAN | |
| 252 ></A | |
| 253 >, | |
| 254 <A | |
| 255 HREF="joystick.html" | |
| 256 >Joystick Functions</A | |
| 257 >, | |
| 258 <A | |
| 259 HREF="sdljoystickeventstate.html" | |
| 260 ><TT | |
| 261 CLASS="FUNCTION" | |
| 262 >SDL_JoystickEventState</TT | |
| 263 ></A | |
| 264 >, | |
| 265 <A | |
| 266 HREF="sdljoystickgetball.html" | |
| 267 ><TT | |
| 268 CLASS="FUNCTION" | |
| 269 >SDL_JoystickGetBall</TT | |
| 270 ></A | |
| 271 ></P | |
| 272 ></DIV | |
| 273 ><DIV | |
| 274 CLASS="NAVFOOTER" | |
| 275 ><HR | |
| 276 ALIGN="LEFT" | |
| 277 WIDTH="100%"><TABLE | |
| 278 WIDTH="100%" | |
| 279 BORDER="0" | |
| 280 CELLPADDING="0" | |
| 281 CELLSPACING="0" | |
| 282 ><TR | |
| 283 ><TD | |
| 284 WIDTH="33%" | |
| 285 ALIGN="left" | |
| 286 VALIGN="top" | |
| 287 ><A | |
| 288 HREF="sdljoyhatevent.html" | |
| 289 >Prev</A | |
| 290 ></TD | |
| 291 ><TD | |
| 292 WIDTH="34%" | |
| 293 ALIGN="center" | |
| 294 VALIGN="top" | |
| 295 ><A | |
| 296 HREF="index.html" | |
| 297 >Home</A | |
| 298 ></TD | |
| 299 ><TD | |
| 300 WIDTH="33%" | |
| 301 ALIGN="right" | |
| 302 VALIGN="top" | |
| 303 ><A | |
| 304 HREF="sdlresizeevent.html" | |
| 305 >Next</A | |
| 306 ></TD | |
| 307 ></TR | |
| 308 ><TR | |
| 309 ><TD | |
| 310 WIDTH="33%" | |
| 311 ALIGN="left" | |
| 312 VALIGN="top" | |
| 313 >SDL_JoyHatEvent</TD | |
| 314 ><TD | |
| 315 WIDTH="34%" | |
| 316 ALIGN="center" | |
| 317 VALIGN="top" | |
| 318 ><A | |
| 319 HREF="eventstructures.html" | |
| 320 >Up</A | |
| 321 ></TD | |
| 322 ><TD | |
| 323 WIDTH="33%" | |
| 324 ALIGN="right" | |
| 325 VALIGN="top" | |
| 326 >SDL_ResizeEvent</TD | |
| 327 ></TR | |
| 328 ></TABLE | |
| 329 ></DIV | |
| 330 ></BODY | |
| 331 ></HTML | |
| 332 > |