Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdopen.html @ 3958:85b6fb6a5e3c SDL-1.2
Actually, this is a better fix...clear the error state once if everything we
need loaded; it's more efficient, and works even if the last unnecessary
xrandr symbol failed to load. Otherwise, leave the original loadso error, so
the end user can find out what symbol failed.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 13 Jun 2007 08:00:10 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
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| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CDOpen</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="CD-ROM" | |
| 14 HREF="cdrom.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_CDName" | |
| 17 HREF="sdlcdname.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CDStatus" | |
| 20 HREF="sdlcdstatus.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="sdlcdname.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="sdlcdstatus.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="SDLCDOPEN" | |
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74 ></A |
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75 >SDL_CDOpen</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN7274" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDOpen -- Opens a CD-ROM drive for access.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN7277" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN7278" |
| 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 >SDL_CD *<B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_CDOpen</B | |
| 108 ></CODE | |
| 109 >(int drive);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN7284" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Opens a CD-ROM drive for access. It returns a <A | |
| 124 HREF="sdlcd.html" | |
| 125 ><SPAN | |
| 126 CLASS="STRUCTNAME" | |
| 127 >SDL_CD</SPAN | |
| 128 ></A | |
| 129 > structure on success, or <TT | |
| 130 CLASS="LITERAL" | |
| 131 >NULL</TT | |
| 132 > if the drive was invalid or busy. This newly opened CD-ROM becomes the default CD used when other CD functions are passed a <TT | |
| 133 CLASS="LITERAL" | |
| 134 >NULL</TT | |
| 135 > CD-ROM handle. </P | |
| 136 ><P | |
| 137 >Drives are numbered starting with 0. | |
| 138 Drive 0 is the system default CD-ROM.</P | |
| 139 ></DIV | |
| 140 ><DIV | |
| 141 CLASS="REFSECT1" | |
| 142 ><A | |
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143 NAME="AEN7292" |
| 0 | 144 ></A |
| 145 ><H2 | |
| 146 >Examples</H2 | |
| 147 ><PRE | |
| 148 CLASS="PROGRAMLISTING" | |
| 149 >SDL_CD *cdrom; | |
| 150 int cur_track; | |
| 151 int min, sec, frame; | |
| 152 SDL_Init(SDL_INIT_CDROM); | |
| 153 atexit(SDL_Quit); | |
| 154 | |
| 155 /* Check for CD drives */ | |
| 156 if(!SDL_CDNumDrives()){ | |
| 157 /* None found */ | |
| 158 fprintf(stderr, "No CDROM devices available\n"); | |
| 159 exit(-1); | |
| 160 } | |
| 161 | |
| 162 /* Open the default drive */ | |
| 163 cdrom=SDL_CDOpen(0); | |
| 164 | |
| 165 /* Did if open? Check if cdrom is NULL */ | |
| 166 if(!cdrom){ | |
| 167 fprintf(stderr, "Couldn't open drive: %s\n", SDL_GetError()); | |
| 168 exit(-1); | |
| 169 } | |
| 170 | |
| 171 /* Print Volume info */ | |
| 172 printf("Name: %s\n", SDL_CDName(0)); | |
| 173 printf("Tracks: %d\n", cdrom->numtracks); | |
| 174 for(cur_track=0;cur_track < cdrom->numtracks; cur_track++){ | |
| 175 FRAMES_TO_MSF(cdrom->track[cur_track].length, &min, &sec, &frame); | |
| 176 printf("\tTrack %d: Length %d:%d\n", cur_track, min, sec); | |
| 177 } | |
| 178 | |
| 179 SDL_CDClose(cdrom);</PRE | |
| 180 ></DIV | |
| 181 ><DIV | |
| 182 CLASS="REFSECT1" | |
| 183 ><A | |
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184 NAME="AEN7295" |
| 0 | 185 ></A |
| 186 ><H2 | |
| 187 >See Also</H2 | |
| 188 ><P | |
| 189 ><A | |
| 190 HREF="sdlcd.html" | |
| 191 ><SPAN | |
| 192 CLASS="STRUCTNAME" | |
| 193 >SDL_CD</SPAN | |
| 194 ></A | |
| 195 >, | |
| 196 <A | |
| 197 HREF="sdlcdtrack.html" | |
| 198 ><SPAN | |
| 199 CLASS="STRUCTNAME" | |
| 200 >SDL_CDtrack</SPAN | |
| 201 ></A | |
| 202 >, | |
| 203 <A | |
| 204 HREF="sdlcdclose.html" | |
| 205 ><TT | |
| 206 CLASS="FUNCTION" | |
| 207 >SDL_CDClose</TT | |
| 208 ></A | |
| 209 ></P | |
| 210 ></DIV | |
| 211 ><DIV | |
| 212 CLASS="NAVFOOTER" | |
| 213 ><HR | |
| 214 ALIGN="LEFT" | |
| 215 WIDTH="100%"><TABLE | |
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216 SUMMARY="Footer navigation table" |
| 0 | 217 WIDTH="100%" |
| 218 BORDER="0" | |
| 219 CELLPADDING="0" | |
| 220 CELLSPACING="0" | |
| 221 ><TR | |
| 222 ><TD | |
| 223 WIDTH="33%" | |
| 224 ALIGN="left" | |
| 225 VALIGN="top" | |
| 226 ><A | |
| 227 HREF="sdlcdname.html" | |
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parents:
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228 ACCESSKEY="P" |
| 0 | 229 >Prev</A |
| 230 ></TD | |
| 231 ><TD | |
| 232 WIDTH="34%" | |
| 233 ALIGN="center" | |
| 234 VALIGN="top" | |
| 235 ><A | |
| 236 HREF="index.html" | |
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parents:
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237 ACCESSKEY="H" |
| 0 | 238 >Home</A |
| 239 ></TD | |
| 240 ><TD | |
| 241 WIDTH="33%" | |
| 242 ALIGN="right" | |
| 243 VALIGN="top" | |
| 244 ><A | |
| 245 HREF="sdlcdstatus.html" | |
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parents:
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246 ACCESSKEY="N" |
| 0 | 247 >Next</A |
| 248 ></TD | |
| 249 ></TR | |
| 250 ><TR | |
| 251 ><TD | |
| 252 WIDTH="33%" | |
| 253 ALIGN="left" | |
| 254 VALIGN="top" | |
| 255 >SDL_CDName</TD | |
| 256 ><TD | |
| 257 WIDTH="34%" | |
| 258 ALIGN="center" | |
| 259 VALIGN="top" | |
| 260 ><A | |
| 261 HREF="cdrom.html" | |
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262 ACCESSKEY="U" |
| 0 | 263 >Up</A |
| 264 ></TD | |
| 265 ><TD | |
| 266 WIDTH="33%" | |
| 267 ALIGN="right" | |
| 268 VALIGN="top" | |
| 269 >SDL_CDStatus</TD | |
| 270 ></TR | |
| 271 ></TABLE | |
| 272 ></DIV | |
| 273 ></BODY | |
| 274 ></HTML | |
| 275 > |