Mercurial > sdl-ios-xcode
annotate docs/html/sdlkeyboardevent.html @ 3100:7dc982143c06
Date: Sun, 22 Mar 2009 12:52:29 +0000
From: Luke Benstead
Subject: OpenGL 3.0 Context Creation
I've attached a patch which implements OpenGL 3.x context creation on
the latest SVN. I've added two options to SDL_GL_SetAttribute, these
are SDL_GL_CONTEXT_MAJOR_VERSION and SDL_GL_CONTEXT_MINOR_VERSION.
These default to 2 and 1 respectively. If the major version is less
than 3 then the current context creation method is used, otherwise the
appropriate new context creation function is called (depending on the
platform).
Sample code:
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("Unable to initialize SDL: %s\n", SDL_GetError());
return 1;
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); //Without these 2 lines, SDL will create a GL 2.x context
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_Surface* screen = SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL | SDL_FULLSCREEN );
I've implemented context creation on both Win32 and X and run basic
tests on both. This patch doesn't provide access to all the options
allowed by the new context creation (e.g. shared contexts, forward
compatible contexts) but they can be added pretty easily.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 24 Mar 2009 10:43:53 +0000 |
parents | 355632dca928 |
children |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_KeyboardEvent</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_ActiveEvent" | |
17 HREF="sdlactiveevent.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_MouseMotionEvent" | |
20 HREF="sdlmousemotionevent.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="sdlactiveevent.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="sdlmousemotionevent.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="SDLKEYBOARDEVENT" | |
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74 ></A |
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75 >SDL_KeyboardEvent</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN4011" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_KeyboardEvent -- Keyboard event structure</DIV | |
84 ><DIV | |
85 CLASS="REFSECT1" | |
86 ><A | |
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87 NAME="AEN4014" |
0 | 88 ></A |
89 ><H2 | |
90 >Structure Definition</H2 | |
91 ><PRE | |
92 CLASS="PROGRAMLISTING" | |
93 >typedef struct{ | |
94 Uint8 type; | |
95 Uint8 state; | |
96 SDL_keysym keysym; | |
97 } SDL_KeyboardEvent;</PRE | |
98 ></DIV | |
99 ><DIV | |
100 CLASS="REFSECT1" | |
101 ><A | |
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102 NAME="AEN4017" |
0 | 103 ></A |
104 ><H2 | |
105 >Structure Data</H2 | |
106 ><DIV | |
107 CLASS="INFORMALTABLE" | |
108 ><A | |
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109 NAME="AEN4019" |
0 | 110 ></A |
111 ><P | |
112 ></P | |
113 ><TABLE | |
114 BORDER="0" | |
115 CLASS="CALSTABLE" | |
116 ><TBODY | |
117 ><TR | |
118 ><TD | |
119 ALIGN="LEFT" | |
120 VALIGN="TOP" | |
121 ><TT | |
122 CLASS="STRUCTFIELD" | |
123 ><I | |
124 >type</I | |
125 ></TT | |
126 ></TD | |
127 ><TD | |
128 ALIGN="LEFT" | |
129 VALIGN="TOP" | |
130 ><TT | |
131 CLASS="LITERAL" | |
132 >SDL_KEYDOWN</TT | |
133 > or <TT | |
134 CLASS="LITERAL" | |
135 >SDL_KEYUP</TT | |
136 ></TD | |
137 ></TR | |
138 ><TR | |
139 ><TD | |
140 ALIGN="LEFT" | |
141 VALIGN="TOP" | |
142 ><TT | |
143 CLASS="STRUCTFIELD" | |
144 ><I | |
145 >state</I | |
146 ></TT | |
147 ></TD | |
148 ><TD | |
149 ALIGN="LEFT" | |
150 VALIGN="TOP" | |
151 ><TT | |
152 CLASS="LITERAL" | |
153 >SDL_PRESSED</TT | |
154 > or <TT | |
155 CLASS="LITERAL" | |
156 >SDL_RELEASED</TT | |
157 ></TD | |
158 ></TR | |
159 ><TR | |
160 ><TD | |
161 ALIGN="LEFT" | |
162 VALIGN="TOP" | |
163 ><TT | |
164 CLASS="STRUCTFIELD" | |
165 ><I | |
166 >keysym</I | |
167 ></TT | |
168 ></TD | |
169 ><TD | |
170 ALIGN="LEFT" | |
171 VALIGN="TOP" | |
172 >Contains key press information</TD | |
173 ></TR | |
174 ></TBODY | |
175 ></TABLE | |
176 ><P | |
177 ></P | |
178 ></DIV | |
179 ></DIV | |
180 ><DIV | |
181 CLASS="REFSECT1" | |
182 ><A | |
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183 NAME="AEN4038" |
0 | 184 ></A |
185 ><H2 | |
186 >Description</H2 | |
187 ><P | |
188 ><SPAN | |
189 CLASS="STRUCTNAME" | |
190 >SDL_KeyboardEvent</SPAN | |
191 > is a member of the <A | |
192 HREF="sdlevent.html" | |
193 ><SPAN | |
194 CLASS="STRUCTNAME" | |
195 >SDL_Event</SPAN | |
196 ></A | |
197 > union and is used when an event of type <TT | |
198 CLASS="LITERAL" | |
199 >SDL_KEYDOWN</TT | |
200 > or <TT | |
201 CLASS="LITERAL" | |
202 >SDL_KEYUP</TT | |
203 > is reported.</P | |
204 ><P | |
205 >The <TT | |
206 CLASS="STRUCTFIELD" | |
207 ><I | |
208 >type</I | |
209 ></TT | |
210 > and <TT | |
211 CLASS="STRUCTFIELD" | |
212 ><I | |
213 >state</I | |
214 ></TT | |
215 > actually report the same information, they just use different values to do it! A keyboard event occurs when a key is released (<TT | |
216 CLASS="STRUCTFIELD" | |
217 ><I | |
218 >type</I | |
219 ></TT | |
220 >=<TT | |
221 CLASS="LITERAL" | |
222 >SDK_KEYUP</TT | |
223 > or <TT | |
224 CLASS="STRUCTFIELD" | |
225 ><I | |
226 >state</I | |
227 ></TT | |
228 >=<TT | |
229 CLASS="LITERAL" | |
230 >SDL_RELEASED</TT | |
231 >) and when a key is pressed (<TT | |
232 CLASS="STRUCTFIELD" | |
233 ><I | |
234 >type</I | |
235 ></TT | |
236 >=<TT | |
237 CLASS="LITERAL" | |
238 >SDL_KEYDOWN</TT | |
239 > or <TT | |
240 CLASS="STRUCTFIELD" | |
241 ><I | |
242 >state</I | |
243 ></TT | |
244 >=<TT | |
245 CLASS="LITERAL" | |
246 >SDL_PRESSED</TT | |
247 >). The information on what key was pressed or released is in the <A | |
248 HREF="sdlkeysym.html" | |
249 ><SPAN | |
250 CLASS="STRUCTNAME" | |
251 >keysym</SPAN | |
252 ></A | |
253 > structure.</P | |
254 ><DIV | |
255 CLASS="NOTE" | |
256 ><BLOCKQUOTE | |
257 CLASS="NOTE" | |
258 ><P | |
259 ><B | |
260 >Note: </B | |
261 >Repeating <TT | |
262 CLASS="LITERAL" | |
263 >SDL_KEYDOWN</TT | |
264 > events will occur if key repeat is enabled (see <A | |
265 HREF="sdlenablekeyrepeat.html" | |
266 ><TT | |
267 CLASS="FUNCTION" | |
268 >SDL_EnableKeyRepeat</TT | |
269 ></A | |
270 >).</P | |
271 ></BLOCKQUOTE | |
272 ></DIV | |
273 ></DIV | |
274 ><DIV | |
275 CLASS="REFSECT1" | |
276 ><A | |
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277 NAME="AEN4064" |
0 | 278 ></A |
279 ><H2 | |
280 >See Also</H2 | |
281 ><P | |
282 ><A | |
283 HREF="sdlevent.html" | |
284 ><SPAN | |
285 CLASS="STRUCTNAME" | |
286 >SDL_Event</SPAN | |
287 ></A | |
288 >, | |
289 <A | |
290 HREF="sdlkeysym.html" | |
291 ><SPAN | |
292 CLASS="STRUCTNAME" | |
293 >SDL_keysym</SPAN | |
294 ></A | |
295 >, | |
296 <A | |
297 HREF="sdlenablekeyrepeat.html" | |
298 ><TT | |
299 CLASS="FUNCTION" | |
300 >SDL_EnableKeyRepeat</TT | |
301 ></A | |
302 >, | |
303 <A | |
304 HREF="sdlenableunicode.html" | |
305 ><TT | |
306 CLASS="FUNCTION" | |
307 >SDL_EnableUNICODE</TT | |
308 ></A | |
309 ></P | |
310 ></DIV | |
311 ><DIV | |
312 CLASS="NAVFOOTER" | |
313 ><HR | |
314 ALIGN="LEFT" | |
315 WIDTH="100%"><TABLE | |
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316 SUMMARY="Footer navigation table" |
0 | 317 WIDTH="100%" |
318 BORDER="0" | |
319 CELLPADDING="0" | |
320 CELLSPACING="0" | |
321 ><TR | |
322 ><TD | |
323 WIDTH="33%" | |
324 ALIGN="left" | |
325 VALIGN="top" | |
326 ><A | |
327 HREF="sdlactiveevent.html" | |
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328 ACCESSKEY="P" |
0 | 329 >Prev</A |
330 ></TD | |
331 ><TD | |
332 WIDTH="34%" | |
333 ALIGN="center" | |
334 VALIGN="top" | |
335 ><A | |
336 HREF="index.html" | |
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337 ACCESSKEY="H" |
0 | 338 >Home</A |
339 ></TD | |
340 ><TD | |
341 WIDTH="33%" | |
342 ALIGN="right" | |
343 VALIGN="top" | |
344 ><A | |
345 HREF="sdlmousemotionevent.html" | |
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346 ACCESSKEY="N" |
0 | 347 >Next</A |
348 ></TD | |
349 ></TR | |
350 ><TR | |
351 ><TD | |
352 WIDTH="33%" | |
353 ALIGN="left" | |
354 VALIGN="top" | |
355 >SDL_ActiveEvent</TD | |
356 ><TD | |
357 WIDTH="34%" | |
358 ALIGN="center" | |
359 VALIGN="top" | |
360 ><A | |
361 HREF="eventstructures.html" | |
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362 ACCESSKEY="U" |
0 | 363 >Up</A |
364 ></TD | |
365 ><TD | |
366 WIDTH="33%" | |
367 ALIGN="right" | |
368 VALIGN="top" | |
369 >SDL_MouseMotionEvent</TD | |
370 ></TR | |
371 ></TABLE | |
372 ></DIV | |
373 ></BODY | |
374 ></HTML | |
375 > |