Mercurial > sdl-ios-xcode
annotate docs/html/sdlwasinit.html @ 803:355632dca928
Updated SDL HTML documentation
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 10 Feb 2004 15:15:40 +0000 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_WasInit</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="General" | |
14 HREF="general.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_Quit" | |
17 HREF="sdlquit.html"><LINK | |
18 REL="NEXT" | |
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19 TITLE="SDL_GetError" |
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20 HREF="sdlgeterror.html"></HEAD |
0 | 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="sdlquit.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 | |
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62 HREF="sdlgeterror.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="SDLWASINIT" | |
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74 ></A |
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75 >SDL_WasInit</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN617" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_WasInit -- Check which subsystems are initialized</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN620" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN621" |
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 >Uint32 <B | |
106 CLASS="FSFUNC" | |
107 >SDL_WasInit</B | |
108 ></CODE | |
109 >(Uint32 flags);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN627" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 ><TT | |
124 CLASS="FUNCTION" | |
125 >SDL_WasInit</TT | |
126 > allows you to see which SDL subsytems have been <A | |
127 HREF="sdlinit.html" | |
128 >initialized</A | |
129 >. <TT | |
130 CLASS="PARAMETER" | |
131 ><I | |
132 >flags</I | |
133 ></TT | |
134 > is a bitwise OR'd combination of the subsystems you wish to check (see <A | |
135 HREF="sdlinit.html" | |
136 ><TT | |
137 CLASS="FUNCTION" | |
138 >SDL_Init</TT | |
139 ></A | |
140 > for a list of subsystem flags).</P | |
141 ></DIV | |
142 ><DIV | |
143 CLASS="REFSECT1" | |
144 ><A | |
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145 NAME="AEN635" |
0 | 146 ></A |
147 ><H2 | |
148 >Return Value</H2 | |
149 ><P | |
150 ><TT | |
151 CLASS="FUNCTION" | |
152 >SDL_WasInit</TT | |
153 > returns a bitwised OR'd combination of the initialized subsystems.</P | |
154 ></DIV | |
155 ><DIV | |
156 CLASS="REFSECT1" | |
157 ><A | |
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158 NAME="AEN639" |
0 | 159 ></A |
160 ><H2 | |
161 >Examples</H2 | |
162 ><PRE | |
163 CLASS="PROGRAMLISTING" | |
164 > /* Here are several ways you can use SDL_WasInit() */ | |
165 | |
166 /* Get init data on all the subsystems */ | |
167 Uint32 subsystem_init; | |
168 | |
169 subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING); | |
170 | |
171 if(subsystem_init&SDL_INIT_VIDEO) | |
172 printf("Video is initialized.\n"); | |
173 else | |
174 printf("Video is not initialized.\n"); | |
175 | |
176 | |
177 | |
178 /* Just check for one specfic subsystem */ | |
179 | |
180 if(SDL_WasInit(SDL_INIT_VIDEO)!=0) | |
181 printf("Video is initialized.\n"); | |
182 else | |
183 printf("Video is not initialized.\n"); | |
184 | |
185 | |
186 | |
187 | |
188 /* Check for two subsystems */ | |
189 | |
190 Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO; | |
191 | |
192 if(SDL_WasInit(subsystem_mask)==subsystem_mask) | |
193 printf("Video and Audio initialized.\n"); | |
194 else | |
195 printf("Video and Audio not initialized.\n"); </PRE | |
196 ></DIV | |
197 ><DIV | |
198 CLASS="REFSECT1" | |
199 ><A | |
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200 NAME="AEN642" |
0 | 201 ></A |
202 ><H2 | |
203 >See Also</H2 | |
204 ><P | |
205 ><A | |
206 HREF="sdlinit.html" | |
207 ><TT | |
208 CLASS="FUNCTION" | |
209 >SDL_Init</TT | |
210 ></A | |
211 >, | |
212 <A | |
213 HREF="sdlinitsubsystem.html" | |
214 ><TT | |
215 CLASS="FUNCTION" | |
216 >SDL_Subsystem</TT | |
217 ></A | |
218 ></P | |
219 ></DIV | |
220 ><DIV | |
221 CLASS="NAVFOOTER" | |
222 ><HR | |
223 ALIGN="LEFT" | |
224 WIDTH="100%"><TABLE | |
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225 SUMMARY="Footer navigation table" |
0 | 226 WIDTH="100%" |
227 BORDER="0" | |
228 CELLPADDING="0" | |
229 CELLSPACING="0" | |
230 ><TR | |
231 ><TD | |
232 WIDTH="33%" | |
233 ALIGN="left" | |
234 VALIGN="top" | |
235 ><A | |
236 HREF="sdlquit.html" | |
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237 ACCESSKEY="P" |
0 | 238 >Prev</A |
239 ></TD | |
240 ><TD | |
241 WIDTH="34%" | |
242 ALIGN="center" | |
243 VALIGN="top" | |
244 ><A | |
245 HREF="index.html" | |
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246 ACCESSKEY="H" |
0 | 247 >Home</A |
248 ></TD | |
249 ><TD | |
250 WIDTH="33%" | |
251 ALIGN="right" | |
252 VALIGN="top" | |
253 ><A | |
181
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254 HREF="sdlgeterror.html" |
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255 ACCESSKEY="N" |
0 | 256 >Next</A |
257 ></TD | |
258 ></TR | |
259 ><TR | |
260 ><TD | |
261 WIDTH="33%" | |
262 ALIGN="left" | |
263 VALIGN="top" | |
264 >SDL_Quit</TD | |
265 ><TD | |
266 WIDTH="34%" | |
267 ALIGN="center" | |
268 VALIGN="top" | |
269 ><A | |
270 HREF="general.html" | |
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271 ACCESSKEY="U" |
0 | 272 >Up</A |
273 ></TD | |
274 ><TD | |
275 WIDTH="33%" | |
276 ALIGN="right" | |
277 VALIGN="top" | |
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278 >SDL_GetError</TD |
0 | 279 ></TR |
280 ></TABLE | |
281 ></DIV | |
282 ></BODY | |
283 ></HTML | |
284 > |