Mercurial > sdl-ios-xcode
annotate docs/html/sdlglsetattribute.html @ 1510:720f8bb49d7d
Win32 fixes
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 13 Mar 2006 02:06:33 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_GL_SetAttribute</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="Video" | |
14 HREF="video.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_GL_GetAttribute" | |
17 HREF="sdlglgetattribute.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_GL_SwapBuffers" | |
20 HREF="sdlglswapbuffers.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="sdlglgetattribute.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="sdlglswapbuffers.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="SDLGLSETATTRIBUTE" | |
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74 ></A |
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75 >SDL_GL_SetAttribute</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2742" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_GL_SetAttribute -- Set a special SDL/OpenGL attribute</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2745" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2746" |
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 >int <B | |
106 CLASS="FSFUNC" | |
107 >SDL_GL_SetAttribute</B | |
108 ></CODE | |
109 >(SDL_GLattr attr, int value);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2752" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Sets the OpenGL <A | |
124 HREF="sdlglattr.html" | |
125 >attribute</A | |
126 > <TT | |
127 CLASS="PARAMETER" | |
128 ><I | |
129 >attr</I | |
130 ></TT | |
131 > to <TT | |
132 CLASS="PARAMETER" | |
133 ><I | |
134 >value</I | |
135 ></TT | |
136 >. The attributes you set don't take effect until after a call to <A | |
137 HREF="sdlsetvideomode.html" | |
138 ><TT | |
139 CLASS="FUNCTION" | |
140 >SDL_SetVideoMode</TT | |
141 ></A | |
142 >. You should use <A | |
143 HREF="sdlglgetattribute.html" | |
144 ><TT | |
145 CLASS="FUNCTION" | |
146 >SDL_GL_GetAttribute</TT | |
147 ></A | |
148 > to check the values after a <TT | |
149 CLASS="FUNCTION" | |
150 >SDL_SetVideoMode</TT | |
151 > call.</P | |
152 ></DIV | |
153 ><DIV | |
154 CLASS="REFSECT1" | |
155 ><A | |
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156 NAME="AEN2763" |
0 | 157 ></A |
158 ><H2 | |
159 >Return Value</H2 | |
160 ><P | |
161 >Returns <SPAN | |
162 CLASS="RETURNVALUE" | |
163 >0</SPAN | |
164 > on success, or <SPAN | |
165 CLASS="RETURNVALUE" | |
166 >-1</SPAN | |
167 > on error.</P | |
168 ></DIV | |
169 ><DIV | |
170 CLASS="REFSECT1" | |
171 ><A | |
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172 NAME="AEN2768" |
0 | 173 ></A |
174 ><H2 | |
175 >Example</H2 | |
176 ><PRE | |
177 CLASS="PROGRAMLISTING" | |
178 >SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 ); | |
179 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 ); | |
180 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 ); | |
181 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 ); | |
182 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 ); | |
183 if ( (screen=SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL )) == NULL ) { | |
184 fprintf(stderr, "Couldn't set GL mode: %s\n", SDL_GetError()); | |
185 SDL_Quit(); | |
186 return; | |
187 }</PRE | |
188 ><DIV | |
189 CLASS="NOTE" | |
190 ><BLOCKQUOTE | |
191 CLASS="NOTE" | |
192 ><P | |
193 ><B | |
194 >Note: </B | |
195 >The <TT | |
196 CLASS="LITERAL" | |
197 >SDL_DOUBLEBUF</TT | |
198 > flag is not required to enable double buffering when setting an OpenGL video mode. Double buffering is enabled or disabled using the SDL_GL_DOUBLEBUFFER attribute.</P | |
199 ></BLOCKQUOTE | |
200 ></DIV | |
201 ></DIV | |
202 ><DIV | |
203 CLASS="REFSECT1" | |
204 ><A | |
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205 NAME="AEN2774" |
0 | 206 ></A |
207 ><H2 | |
208 >See Also</H2 | |
209 ><P | |
210 ><A | |
211 HREF="sdlglgetattribute.html" | |
212 ><TT | |
213 CLASS="FUNCTION" | |
214 >SDL_GL_GetAttribute</TT | |
215 ></A | |
216 >, | |
217 <A | |
218 HREF="sdlglattr.html" | |
219 >GL Attributes</A | |
220 ></P | |
221 ></DIV | |
222 ><DIV | |
223 CLASS="NAVFOOTER" | |
224 ><HR | |
225 ALIGN="LEFT" | |
226 WIDTH="100%"><TABLE | |
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227 SUMMARY="Footer navigation table" |
0 | 228 WIDTH="100%" |
229 BORDER="0" | |
230 CELLPADDING="0" | |
231 CELLSPACING="0" | |
232 ><TR | |
233 ><TD | |
234 WIDTH="33%" | |
235 ALIGN="left" | |
236 VALIGN="top" | |
237 ><A | |
238 HREF="sdlglgetattribute.html" | |
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239 ACCESSKEY="P" |
0 | 240 >Prev</A |
241 ></TD | |
242 ><TD | |
243 WIDTH="34%" | |
244 ALIGN="center" | |
245 VALIGN="top" | |
246 ><A | |
247 HREF="index.html" | |
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248 ACCESSKEY="H" |
0 | 249 >Home</A |
250 ></TD | |
251 ><TD | |
252 WIDTH="33%" | |
253 ALIGN="right" | |
254 VALIGN="top" | |
255 ><A | |
256 HREF="sdlglswapbuffers.html" | |
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257 ACCESSKEY="N" |
0 | 258 >Next</A |
259 ></TD | |
260 ></TR | |
261 ><TR | |
262 ><TD | |
263 WIDTH="33%" | |
264 ALIGN="left" | |
265 VALIGN="top" | |
266 >SDL_GL_GetAttribute</TD | |
267 ><TD | |
268 WIDTH="34%" | |
269 ALIGN="center" | |
270 VALIGN="top" | |
271 ><A | |
272 HREF="video.html" | |
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273 ACCESSKEY="U" |
0 | 274 >Up</A |
275 ></TD | |
276 ><TD | |
277 WIDTH="33%" | |
278 ALIGN="right" | |
279 VALIGN="top" | |
280 >SDL_GL_SwapBuffers</TD | |
281 ></TR | |
282 ></TABLE | |
283 ></DIV | |
284 ></BODY | |
285 ></HTML | |
286 > |