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Revision 81 - (show annotations)
Wed May 27 20:33:03 2009 UTC (10 years, 3 months ago) by Jede
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Ajouts des libs windows
1 <HTML
2 ><HEAD
3 ><TITLE
4 >SDL_CD</TITLE
5 ><META
6 NAME="GENERATOR"
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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_CDClose"
17 HREF="sdlcdclose.html"><LINK
18 REL="NEXT"
19 TITLE="SDL_CDtrack"
20 HREF="sdlcdtrack.html"></HEAD
21 ><BODY
22 CLASS="REFENTRY"
23 BGCOLOR="#FFF8DC"
24 TEXT="#000000"
25 LINK="#0000ee"
26 VLINK="#551a8b"
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28 ><DIV
29 CLASS="NAVHEADER"
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31 SUMMARY="Header navigation table"
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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="sdlcdclose.html"
49 ACCESSKEY="P"
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="sdlcdtrack.html"
63 ACCESSKEY="N"
64 >Next</A
65 ></TD
66 ></TR
67 ></TABLE
68 ><HR
69 ALIGN="LEFT"
70 WIDTH="100%"></DIV
71 ><H1
72 ><A
73 NAME="SDLCD"
74 ></A
75 >SDL_CD</H1
76 ><DIV
77 CLASS="REFNAMEDIV"
78 ><A
79 NAME="AEN7566"
80 ></A
81 ><H2
82 >Name</H2
83 >SDL_CD&nbsp;--&nbsp;CDROM Drive Information</DIV
84 ><DIV
85 CLASS="REFSECT1"
86 ><A
87 NAME="AEN7569"
88 ></A
89 ><H2
90 >Structure Definition</H2
91 ><PRE
92 CLASS="PROGRAMLISTING"
93 >typedef struct{
94 int id;
95 CDstatus status;
96 int numtracks;
97 int cur_track;
98 int cur_frame;
99 SDL_CDtrack track[SDL_MAX_TRACKS+1];
100 } SDL_CD;</PRE
101 ></DIV
102 ><DIV
103 CLASS="REFSECT1"
104 ><A
105 NAME="AEN7572"
106 ></A
107 ><H2
108 >Structure Data</H2
109 ><DIV
110 CLASS="INFORMALTABLE"
111 ><A
112 NAME="AEN7574"
113 ></A
114 ><P
115 ></P
116 ><TABLE
117 BORDER="0"
118 CLASS="CALSTABLE"
119 ><TBODY
120 ><TR
121 ><TD
122 ALIGN="LEFT"
123 VALIGN="TOP"
124 ><TT
125 CLASS="STRUCTFIELD"
126 ><I
127 >id</I
128 ></TT
129 ></TD
130 ><TD
131 ALIGN="LEFT"
132 VALIGN="TOP"
133 >Private drive identifier</TD
134 ></TR
135 ><TR
136 ><TD
137 ALIGN="LEFT"
138 VALIGN="TOP"
139 ><TT
140 CLASS="STRUCTFIELD"
141 ><I
142 >status</I
143 ></TT
144 ></TD
145 ><TD
146 ALIGN="LEFT"
147 VALIGN="TOP"
148 >Drive <A
149 HREF="sdlcdstatus.html"
150 >status</A
151 ></TD
152 ></TR
153 ><TR
154 ><TD
155 ALIGN="LEFT"
156 VALIGN="TOP"
157 ><TT
158 CLASS="STRUCTFIELD"
159 ><I
160 >numtracks</I
161 ></TT
162 ></TD
163 ><TD
164 ALIGN="LEFT"
165 VALIGN="TOP"
166 >Number of tracks on the CD</TD
167 ></TR
168 ><TR
169 ><TD
170 ALIGN="LEFT"
171 VALIGN="TOP"
172 ><TT
173 CLASS="STRUCTFIELD"
174 ><I
175 >cur_track</I
176 ></TT
177 ></TD
178 ><TD
179 ALIGN="LEFT"
180 VALIGN="TOP"
181 >Current track</TD
182 ></TR
183 ><TR
184 ><TD
185 ALIGN="LEFT"
186 VALIGN="TOP"
187 ><TT
188 CLASS="STRUCTFIELD"
189 ><I
190 >cur_frame</I
191 ></TT
192 ></TD
193 ><TD
194 ALIGN="LEFT"
195 VALIGN="TOP"
196 >Current frame offset within the track</TD
197 ></TR
198 ><TR
199 ><TD
200 ALIGN="LEFT"
201 VALIGN="TOP"
202 ><TT
203 CLASS="STRUCTFIELD"
204 ><I
205 >track</I
206 ></TT
207 >[SDL_MAX_TRACKS+1]</TD
208 ><TD
209 ALIGN="LEFT"
210 VALIGN="TOP"
211 >Array of track descriptions. (see <A
212 HREF="sdlcdtrack.html"
213 ><SPAN
214 CLASS="STRUCTNAME"
215 >SDL_CDtrack</SPAN
216 ></A
217 >)</TD
218 ></TR
219 ></TBODY
220 ></TABLE
221 ><P
222 ></P
223 ></DIV
224 ></DIV
225 ><DIV
226 CLASS="REFSECT1"
227 ><A
228 NAME="AEN7604"
229 ></A
230 ><H2
231 >Description</H2
232 ><P
233 >An <SPAN
234 CLASS="STRUCTNAME"
235 >SDL_CD</SPAN
236 > structure is returned by <A
237 HREF="sdlcdopen.html"
238 ><TT
239 CLASS="FUNCTION"
240 >SDL_CDOpen</TT
241 ></A
242 >. It represents an opened CDROM device and stores information on the layout of the tracks on the disc.</P
243 ><P
244 >A frame is the base data unit of a CD. <TT
245 CLASS="LITERAL"
246 >CD_FPS</TT
247 > frames is equal to 1 second of music. SDL provides two macros for converting between time and frames: <TT
248 CLASS="LITERAL"
249 >FRAMES_TO_MSF(f, M,S,F)</TT
250 > and <TT
251 CLASS="LITERAL"
252 >MSF_TO_FRAMES</TT
253 >.</P
254 ></DIV
255 ><DIV
256 CLASS="REFSECT1"
257 ><A
258 NAME="AEN7614"
259 ></A
260 ><H2
261 >Examples</H2
262 ><PRE
263 CLASS="PROGRAMLISTING"
264 >int min, sec, frame;
265 int frame_offset;
266
267 FRAMES_TO_MSF(cdrom-&#62;cur_frame, &#38;min, &#38;sec, &#38;frame);
268 printf("Current Position: %d minutes, %d seconds, %d frames\n", min, sec, frame);
269
270 frame_offset=MSF_TO_FRAMES(min, sec, frame);</PRE
271 ></DIV
272 ><DIV
273 CLASS="REFSECT1"
274 ><A
275 NAME="AEN7617"
276 ></A
277 ><H2
278 >See Also</H2
279 ><P
280 ><A
281 HREF="sdlcdopen.html"
282 ><TT
283 CLASS="FUNCTION"
284 >SDL_CDOpen</TT
285 ></A
286 >,
287 <A
288 HREF="sdlcdtrack.html"
289 ><SPAN
290 CLASS="STRUCTNAME"
291 >SDL_CDtrack</SPAN
292 ></A
293 ></P
294 ></DIV
295 ><DIV
296 CLASS="NAVFOOTER"
297 ><HR
298 ALIGN="LEFT"
299 WIDTH="100%"><TABLE
300 SUMMARY="Footer navigation table"
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306 ><TD
307 WIDTH="33%"
308 ALIGN="left"
309 VALIGN="top"
310 ><A
311 HREF="sdlcdclose.html"
312 ACCESSKEY="P"
313 >Prev</A
314 ></TD
315 ><TD
316 WIDTH="34%"
317 ALIGN="center"
318 VALIGN="top"
319 ><A
320 HREF="index.html"
321 ACCESSKEY="H"
322 >Home</A
323 ></TD
324 ><TD
325 WIDTH="33%"
326 ALIGN="right"
327 VALIGN="top"
328 ><A
329 HREF="sdlcdtrack.html"
330 ACCESSKEY="N"
331 >Next</A
332 ></TD
333 ></TR
334 ><TR
335 ><TD
336 WIDTH="33%"
337 ALIGN="left"
338 VALIGN="top"
339 >SDL_CDClose</TD
340 ><TD
341 WIDTH="34%"
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344 ><A
345 HREF="cdrom.html"
346 ACCESSKEY="U"
347 >Up</A
348 ></TD
349 ><TD
350 WIDTH="33%"
351 ALIGN="right"
352 VALIGN="top"
353 >SDL_CDtrack</TD
354 ></TR
355 ></TABLE
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357 ></BODY
358 ></HTML
359 >

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