Mercurial > sdl-ios-xcode
annotate docs/html/sdlwasinit.html @ 211:0cc95f442f3a
If we're looking at the /dev/input event devices, and we found
at least one, then we don't want to look at the input joystick
devices, since they're built on top of devices that we've already
seen, so we're done.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 22 Oct 2001 21:34:50 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 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 1.64 |
| 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 | |
| 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="sdlquit.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 | |
|
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60 HREF="sdlgeterror.html" |
| 0 | 61 >Next</A |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><H1 | |
| 69 ><A | |
| 70 NAME="SDLWASINIT" | |
| 71 >SDL_WasInit</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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76 NAME="AEN617" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_WasInit -- Check which subsystems are initialized</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
|
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84 NAME="AEN620" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
|
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91 NAME="AEN621" |
| 0 | 92 ></A |
| 93 ><P | |
| 94 ></P | |
| 95 ><PRE | |
| 96 CLASS="FUNCSYNOPSISINFO" | |
| 97 >#include "SDL.h"</PRE | |
| 98 ><P | |
| 99 ><CODE | |
| 100 ><CODE | |
| 101 CLASS="FUNCDEF" | |
| 102 >Uint32 <B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_WasInit</B | |
| 105 ></CODE | |
| 106 >(Uint32 flags);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
|
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115 NAME="AEN627" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
| 120 ><TT | |
| 121 CLASS="FUNCTION" | |
| 122 >SDL_WasInit</TT | |
| 123 > allows you to see which SDL subsytems have been <A | |
| 124 HREF="sdlinit.html" | |
| 125 >initialized</A | |
| 126 >. <TT | |
| 127 CLASS="PARAMETER" | |
| 128 ><I | |
| 129 >flags</I | |
| 130 ></TT | |
| 131 > is a bitwise OR'd combination of the subsystems you wish to check (see <A | |
| 132 HREF="sdlinit.html" | |
| 133 ><TT | |
| 134 CLASS="FUNCTION" | |
| 135 >SDL_Init</TT | |
| 136 ></A | |
| 137 > for a list of subsystem flags).</P | |
| 138 ></DIV | |
| 139 ><DIV | |
| 140 CLASS="REFSECT1" | |
| 141 ><A | |
|
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142 NAME="AEN635" |
| 0 | 143 ></A |
| 144 ><H2 | |
| 145 >Return Value</H2 | |
| 146 ><P | |
| 147 ><TT | |
| 148 CLASS="FUNCTION" | |
| 149 >SDL_WasInit</TT | |
| 150 > returns a bitwised OR'd combination of the initialized subsystems.</P | |
| 151 ></DIV | |
| 152 ><DIV | |
| 153 CLASS="REFSECT1" | |
| 154 ><A | |
|
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155 NAME="AEN639" |
| 0 | 156 ></A |
| 157 ><H2 | |
| 158 >Examples</H2 | |
| 159 ><PRE | |
| 160 CLASS="PROGRAMLISTING" | |
| 161 > /* Here are several ways you can use SDL_WasInit() */ | |
| 162 | |
| 163 /* Get init data on all the subsystems */ | |
| 164 Uint32 subsystem_init; | |
| 165 | |
| 166 subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING); | |
| 167 | |
| 168 if(subsystem_init&SDL_INIT_VIDEO) | |
| 169 printf("Video is initialized.\n"); | |
| 170 else | |
| 171 printf("Video is not initialized.\n"); | |
| 172 | |
| 173 | |
| 174 | |
| 175 /* Just check for one specfic subsystem */ | |
| 176 | |
| 177 if(SDL_WasInit(SDL_INIT_VIDEO)!=0) | |
| 178 printf("Video is initialized.\n"); | |
| 179 else | |
| 180 printf("Video is not initialized.\n"); | |
| 181 | |
| 182 | |
| 183 | |
| 184 | |
| 185 /* Check for two subsystems */ | |
| 186 | |
| 187 Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO; | |
| 188 | |
| 189 if(SDL_WasInit(subsystem_mask)==subsystem_mask) | |
| 190 printf("Video and Audio initialized.\n"); | |
| 191 else | |
| 192 printf("Video and Audio not initialized.\n"); </PRE | |
| 193 ></DIV | |
| 194 ><DIV | |
| 195 CLASS="REFSECT1" | |
| 196 ><A | |
|
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197 NAME="AEN642" |
| 0 | 198 ></A |
| 199 ><H2 | |
| 200 >See Also</H2 | |
| 201 ><P | |
| 202 ><A | |
| 203 HREF="sdlinit.html" | |
| 204 ><TT | |
| 205 CLASS="FUNCTION" | |
| 206 >SDL_Init</TT | |
| 207 ></A | |
| 208 >, | |
| 209 <A | |
| 210 HREF="sdlinitsubsystem.html" | |
| 211 ><TT | |
| 212 CLASS="FUNCTION" | |
| 213 >SDL_Subsystem</TT | |
| 214 ></A | |
| 215 ></P | |
| 216 ></DIV | |
| 217 ><DIV | |
| 218 CLASS="NAVFOOTER" | |
| 219 ><HR | |
| 220 ALIGN="LEFT" | |
| 221 WIDTH="100%"><TABLE | |
| 222 WIDTH="100%" | |
| 223 BORDER="0" | |
| 224 CELLPADDING="0" | |
| 225 CELLSPACING="0" | |
| 226 ><TR | |
| 227 ><TD | |
| 228 WIDTH="33%" | |
| 229 ALIGN="left" | |
| 230 VALIGN="top" | |
| 231 ><A | |
| 232 HREF="sdlquit.html" | |
| 233 >Prev</A | |
| 234 ></TD | |
| 235 ><TD | |
| 236 WIDTH="34%" | |
| 237 ALIGN="center" | |
| 238 VALIGN="top" | |
| 239 ><A | |
| 240 HREF="index.html" | |
| 241 >Home</A | |
| 242 ></TD | |
| 243 ><TD | |
| 244 WIDTH="33%" | |
| 245 ALIGN="right" | |
| 246 VALIGN="top" | |
| 247 ><A | |
|
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248 HREF="sdlgeterror.html" |
| 0 | 249 >Next</A |
| 250 ></TD | |
| 251 ></TR | |
| 252 ><TR | |
| 253 ><TD | |
| 254 WIDTH="33%" | |
| 255 ALIGN="left" | |
| 256 VALIGN="top" | |
| 257 >SDL_Quit</TD | |
| 258 ><TD | |
| 259 WIDTH="34%" | |
| 260 ALIGN="center" | |
| 261 VALIGN="top" | |
| 262 ><A | |
| 263 HREF="general.html" | |
| 264 >Up</A | |
| 265 ></TD | |
| 266 ><TD | |
| 267 WIDTH="33%" | |
| 268 ALIGN="right" | |
| 269 VALIGN="top" | |
|
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270 >SDL_GetError</TD |
| 0 | 271 ></TR |
| 272 ></TABLE | |
| 273 ></DIV | |
| 274 ></BODY | |
| 275 ></HTML | |
| 276 > |