Mercurial > sdl-ios-xcode
annotate docs/html/sdluserevent.html @ 2994:7563b99e9a49
Date: Sat, 3 Jan 2009 22:11:18 -0500
From: "Donny Viszneki"
Subject: Re: [SDL] Want to help with SDL 1.3?
>> > For example, here's a good quick project for someone from the TODO list:
>> > * Add diagonal line clipping to SDL_IntersectRectAndLine()
Just wanted to point out that the patch is available at
http://codebad.com/rect-line-ix.patch
I hereby grant Sam Lantinga an irrevocable non-exclusive distribution
license to this patch to do with as he wishes.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 04 Jan 2009 19:33:21 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_UserEvent</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="SDL Event Structures." | |
| 14 HREF="eventstructures.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_SysWMEvent" | |
| 17 HREF="sdlsyswmevent.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_QuitEvent" | |
| 20 HREF="sdlquitevent.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="sdlsyswmevent.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="sdlquitevent.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="SDLUSEREVENT" | |
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74 ></A |
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75 >SDL_UserEvent</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN4565" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_UserEvent -- A user-defined event type</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSECT1" | |
| 86 ><A | |
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87 NAME="AEN4568" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Structure Definition</H2 | |
| 91 ><PRE | |
| 92 CLASS="PROGRAMLISTING" | |
| 93 >typedef struct{ | |
| 94 Uint8 type; | |
| 95 int code; | |
| 96 void *data1; | |
| 97 void *data2; | |
| 98 } SDL_UserEvent;</PRE | |
| 99 ></DIV | |
| 100 ><DIV | |
| 101 CLASS="REFSECT1" | |
| 102 ><A | |
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103 NAME="AEN4571" |
| 0 | 104 ></A |
| 105 ><H2 | |
| 106 >Structure Data</H2 | |
| 107 ><DIV | |
| 108 CLASS="INFORMALTABLE" | |
| 109 ><A | |
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110 NAME="AEN4573" |
| 0 | 111 ></A |
| 112 ><P | |
| 113 ></P | |
| 114 ><TABLE | |
| 115 BORDER="0" | |
| 116 CLASS="CALSTABLE" | |
| 117 ><TBODY | |
| 118 ><TR | |
| 119 ><TD | |
| 120 ALIGN="LEFT" | |
| 121 VALIGN="TOP" | |
| 122 ><TT | |
| 123 CLASS="STRUCTFIELD" | |
| 124 ><I | |
| 125 >type</I | |
| 126 ></TT | |
| 127 ></TD | |
| 128 ><TD | |
| 129 ALIGN="LEFT" | |
| 130 VALIGN="TOP" | |
| 131 ><TT | |
| 132 CLASS="LITERAL" | |
| 133 >SDL_USEREVENT</TT | |
| 134 > through to <TT | |
| 135 CLASS="LITERAL" | |
| 136 >SDL_NUMEVENTS-1</TT | |
| 137 ></TD | |
| 138 ></TR | |
| 139 ><TR | |
| 140 ><TD | |
| 141 ALIGN="LEFT" | |
| 142 VALIGN="TOP" | |
| 143 ><TT | |
| 144 CLASS="STRUCTFIELD" | |
| 145 ><I | |
| 146 >code</I | |
| 147 ></TT | |
| 148 ></TD | |
| 149 ><TD | |
| 150 ALIGN="LEFT" | |
| 151 VALIGN="TOP" | |
| 152 >User defined event code</TD | |
| 153 ></TR | |
| 154 ><TR | |
| 155 ><TD | |
| 156 ALIGN="LEFT" | |
| 157 VALIGN="TOP" | |
| 158 ><TT | |
| 159 CLASS="STRUCTFIELD" | |
| 160 ><I | |
| 161 >data1</I | |
| 162 ></TT | |
| 163 ></TD | |
| 164 ><TD | |
| 165 ALIGN="LEFT" | |
| 166 VALIGN="TOP" | |
| 167 >User defined data pointer</TD | |
| 168 ></TR | |
| 169 ><TR | |
| 170 ><TD | |
| 171 ALIGN="LEFT" | |
| 172 VALIGN="TOP" | |
| 173 ><TT | |
| 174 CLASS="STRUCTFIELD" | |
| 175 ><I | |
| 176 >data2</I | |
| 177 ></TT | |
| 178 ></TD | |
| 179 ><TD | |
| 180 ALIGN="LEFT" | |
| 181 VALIGN="TOP" | |
| 182 >User defined data pointer</TD | |
| 183 ></TR | |
| 184 ></TBODY | |
| 185 ></TABLE | |
| 186 ><P | |
| 187 ></P | |
| 188 ></DIV | |
| 189 ></DIV | |
| 190 ><DIV | |
| 191 CLASS="REFSECT1" | |
| 192 ><A | |
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193 NAME="AEN4594" |
| 0 | 194 ></A |
| 195 ><H2 | |
| 196 >Description</H2 | |
| 197 ><P | |
| 198 ><SPAN | |
| 199 CLASS="STRUCTNAME" | |
| 200 >SDL_UserEvent</SPAN | |
| 201 > is in the <TT | |
| 202 CLASS="STRUCTFIELD" | |
| 203 ><I | |
| 204 >user</I | |
| 205 ></TT | |
| 206 > member of the structure <A | |
| 207 HREF="sdlevent.html" | |
| 208 ><SPAN | |
| 209 CLASS="STRUCTNAME" | |
| 210 >SDL_Event</SPAN | |
| 211 ></A | |
| 212 >. This event is unique, it is never created by SDL but only by the user. The event can be pushed onto the event queue using <A | |
| 213 HREF="sdlpushevent.html" | |
| 214 ><TT | |
| 215 CLASS="FUNCTION" | |
| 216 >SDL_PushEvent</TT | |
| 217 ></A | |
| 218 >. The contents of the structure members or completely up to the programmer, the only requirement is that <TT | |
| 219 CLASS="STRUCTFIELD" | |
| 220 ><I | |
| 221 >type</I | |
| 222 ></TT | |
| 223 > is a value from <TT | |
| 224 CLASS="LITERAL" | |
| 225 >SDL_USEREVENT</TT | |
| 226 > to <TT | |
| 227 CLASS="LITERAL" | |
| 228 >SDL_NUMEVENTS-1</TT | |
| 229 > (inclusive).</P | |
| 230 ></DIV | |
| 231 ><DIV | |
| 232 CLASS="REFSECT1" | |
| 233 ><A | |
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234 NAME="AEN4606" |
| 0 | 235 ></A |
| 236 ><H2 | |
| 237 >Examples</H2 | |
| 238 ><P | |
| 239 ><PRE | |
| 240 CLASS="PROGRAMLISTING" | |
| 241 >SDL_Event event; | |
| 242 | |
| 243 event.type = SDL_USEREVENT; | |
| 244 event.user.code = my_event_code; | |
| 245 event.user.data1 = significant_data; | |
| 246 event.user.data2 = 0; | |
| 247 SDL_PushEvent(&event);</PRE | |
| 248 ></P | |
| 249 ></DIV | |
| 250 ><DIV | |
| 251 CLASS="REFSECT1" | |
| 252 ><A | |
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253 NAME="AEN4610" |
| 0 | 254 ></A |
| 255 ><H2 | |
| 256 >See Also</H2 | |
| 257 ><P | |
| 258 ><A | |
| 259 HREF="sdlevent.html" | |
| 260 ><SPAN | |
| 261 CLASS="STRUCTNAME" | |
| 262 >SDL_Event</SPAN | |
| 263 ></A | |
| 264 >, | |
| 265 <A | |
| 266 HREF="sdlpushevent.html" | |
| 267 ><TT | |
| 268 CLASS="FUNCTION" | |
| 269 >SDL_PushEvent</TT | |
| 270 ></A | |
| 271 ></P | |
| 272 ></DIV | |
| 273 ><DIV | |
| 274 CLASS="NAVFOOTER" | |
| 275 ><HR | |
| 276 ALIGN="LEFT" | |
| 277 WIDTH="100%"><TABLE | |
|
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278 SUMMARY="Footer navigation table" |
| 0 | 279 WIDTH="100%" |
| 280 BORDER="0" | |
| 281 CELLPADDING="0" | |
| 282 CELLSPACING="0" | |
| 283 ><TR | |
| 284 ><TD | |
| 285 WIDTH="33%" | |
| 286 ALIGN="left" | |
| 287 VALIGN="top" | |
| 288 ><A | |
| 289 HREF="sdlsyswmevent.html" | |
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290 ACCESSKEY="P" |
| 0 | 291 >Prev</A |
| 292 ></TD | |
| 293 ><TD | |
| 294 WIDTH="34%" | |
| 295 ALIGN="center" | |
| 296 VALIGN="top" | |
| 297 ><A | |
| 298 HREF="index.html" | |
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299 ACCESSKEY="H" |
| 0 | 300 >Home</A |
| 301 ></TD | |
| 302 ><TD | |
| 303 WIDTH="33%" | |
| 304 ALIGN="right" | |
| 305 VALIGN="top" | |
| 306 ><A | |
| 307 HREF="sdlquitevent.html" | |
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308 ACCESSKEY="N" |
| 0 | 309 >Next</A |
| 310 ></TD | |
| 311 ></TR | |
| 312 ><TR | |
| 313 ><TD | |
| 314 WIDTH="33%" | |
| 315 ALIGN="left" | |
| 316 VALIGN="top" | |
| 317 >SDL_SysWMEvent</TD | |
| 318 ><TD | |
| 319 WIDTH="34%" | |
| 320 ALIGN="center" | |
| 321 VALIGN="top" | |
| 322 ><A | |
| 323 HREF="eventstructures.html" | |
|
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324 ACCESSKEY="U" |
| 0 | 325 >Up</A |
| 326 ></TD | |
| 327 ><TD | |
| 328 WIDTH="33%" | |
| 329 ALIGN="right" | |
| 330 VALIGN="top" | |
| 331 >SDL_QuitEvent</TD | |
| 332 ></TR | |
| 333 ></TABLE | |
| 334 ></DIV | |
| 335 ></BODY | |
| 336 ></HTML | |
| 337 > |