Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdopen.html @ 548:6cd49f896c5a
Open ALSA devices in non-blocking mode (thanks Aleksey!)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 17 Nov 2002 20:02:26 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 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 1.64 |
| 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 | |
| 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="sdlcdname.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 | |
| 60 HREF="sdlcdstatus.html" | |
| 61 >Next</A | |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><H1 | |
| 69 ><A | |
| 70 NAME="SDLCDOPEN" | |
| 71 >SDL_CDOpen</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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76 NAME="AEN6886" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_CDOpen -- Opens a CD-ROM drive for access.</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN6889" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
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91 NAME="AEN6890" |
| 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 >SDL_CD *<B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_CDOpen</B | |
| 105 ></CODE | |
| 106 >(int drive);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
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115 NAME="AEN6896" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
| 120 >Opens a CD-ROM drive for access. It returns a <A | |
| 121 HREF="sdlcd.html" | |
| 122 ><SPAN | |
| 123 CLASS="STRUCTNAME" | |
| 124 >SDL_CD</SPAN | |
| 125 ></A | |
| 126 > structure on success, or <TT | |
| 127 CLASS="LITERAL" | |
| 128 >NULL</TT | |
| 129 > 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 | |
| 130 CLASS="LITERAL" | |
| 131 >NULL</TT | |
| 132 > CD-ROM handle. </P | |
| 133 ><P | |
| 134 >Drives are numbered starting with 0. | |
| 135 Drive 0 is the system default CD-ROM.</P | |
| 136 ></DIV | |
| 137 ><DIV | |
| 138 CLASS="REFSECT1" | |
| 139 ><A | |
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140 NAME="AEN6904" |
| 0 | 141 ></A |
| 142 ><H2 | |
| 143 >Examples</H2 | |
| 144 ><PRE | |
| 145 CLASS="PROGRAMLISTING" | |
| 146 >SDL_CD *cdrom; | |
| 147 int cur_track; | |
| 148 int min, sec, frame; | |
| 149 SDL_Init(SDL_INIT_CDROM); | |
| 150 atexit(SDL_Quit); | |
| 151 | |
| 152 /* Check for CD drives */ | |
| 153 if(!SDL_CDNumDrives()){ | |
| 154 /* None found */ | |
| 155 fprintf(stderr, "No CDROM devices available\n"); | |
| 156 exit(-1); | |
| 157 } | |
| 158 | |
| 159 /* Open the default drive */ | |
| 160 cdrom=SDL_CDOpen(0); | |
| 161 | |
| 162 /* Did if open? Check if cdrom is NULL */ | |
| 163 if(!cdrom){ | |
| 164 fprintf(stderr, "Couldn't open drive: %s\n", SDL_GetError()); | |
| 165 exit(-1); | |
| 166 } | |
| 167 | |
| 168 /* Print Volume info */ | |
| 169 printf("Name: %s\n", SDL_CDName(0)); | |
| 170 printf("Tracks: %d\n", cdrom->numtracks); | |
| 171 for(cur_track=0;cur_track < cdrom->numtracks; cur_track++){ | |
| 172 FRAMES_TO_MSF(cdrom->track[cur_track].length, &min, &sec, &frame); | |
| 173 printf("\tTrack %d: Length %d:%d\n", cur_track, min, sec); | |
| 174 } | |
| 175 | |
| 176 SDL_CDClose(cdrom);</PRE | |
| 177 ></DIV | |
| 178 ><DIV | |
| 179 CLASS="REFSECT1" | |
| 180 ><A | |
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181 NAME="AEN6907" |
| 0 | 182 ></A |
| 183 ><H2 | |
| 184 >See Also</H2 | |
| 185 ><P | |
| 186 ><A | |
| 187 HREF="sdlcd.html" | |
| 188 ><SPAN | |
| 189 CLASS="STRUCTNAME" | |
| 190 >SDL_CD</SPAN | |
| 191 ></A | |
| 192 >, | |
| 193 <A | |
| 194 HREF="sdlcdtrack.html" | |
| 195 ><SPAN | |
| 196 CLASS="STRUCTNAME" | |
| 197 >SDL_CDtrack</SPAN | |
| 198 ></A | |
| 199 >, | |
| 200 <A | |
| 201 HREF="sdlcdclose.html" | |
| 202 ><TT | |
| 203 CLASS="FUNCTION" | |
| 204 >SDL_CDClose</TT | |
| 205 ></A | |
| 206 ></P | |
| 207 ></DIV | |
| 208 ><DIV | |
| 209 CLASS="NAVFOOTER" | |
| 210 ><HR | |
| 211 ALIGN="LEFT" | |
| 212 WIDTH="100%"><TABLE | |
| 213 WIDTH="100%" | |
| 214 BORDER="0" | |
| 215 CELLPADDING="0" | |
| 216 CELLSPACING="0" | |
| 217 ><TR | |
| 218 ><TD | |
| 219 WIDTH="33%" | |
| 220 ALIGN="left" | |
| 221 VALIGN="top" | |
| 222 ><A | |
| 223 HREF="sdlcdname.html" | |
| 224 >Prev</A | |
| 225 ></TD | |
| 226 ><TD | |
| 227 WIDTH="34%" | |
| 228 ALIGN="center" | |
| 229 VALIGN="top" | |
| 230 ><A | |
| 231 HREF="index.html" | |
| 232 >Home</A | |
| 233 ></TD | |
| 234 ><TD | |
| 235 WIDTH="33%" | |
| 236 ALIGN="right" | |
| 237 VALIGN="top" | |
| 238 ><A | |
| 239 HREF="sdlcdstatus.html" | |
| 240 >Next</A | |
| 241 ></TD | |
| 242 ></TR | |
| 243 ><TR | |
| 244 ><TD | |
| 245 WIDTH="33%" | |
| 246 ALIGN="left" | |
| 247 VALIGN="top" | |
| 248 >SDL_CDName</TD | |
| 249 ><TD | |
| 250 WIDTH="34%" | |
| 251 ALIGN="center" | |
| 252 VALIGN="top" | |
| 253 ><A | |
| 254 HREF="cdrom.html" | |
| 255 >Up</A | |
| 256 ></TD | |
| 257 ><TD | |
| 258 WIDTH="33%" | |
| 259 ALIGN="right" | |
| 260 VALIGN="top" | |
| 261 >SDL_CDStatus</TD | |
| 262 ></TR | |
| 263 ></TABLE | |
| 264 ></DIV | |
| 265 ></BODY | |
| 266 ></HTML | |
| 267 > |