Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdstatus.html @ 701:aaf3b8af6616
Date: Sat, 30 Aug 2003 16:28:10 +0300
From: "Mike Gorchak"
Subject: Re: SDL 1.2.6
- minor changes about shared library building under QNX6 into README.QNX
- added forgotten libSDLmain.a into distribution, SDL.qpg.in
- added header guards to the all headers.
- fixed fullscreen double buffered mode.
- fixed Photon crashes after/during using fullscreen OpenGL modes.
- added GL_MakeCurrent function.
- added SDL_VIDEOEXPOSE event, when OpenGL window have been resized
- added more HAVE_OPENGL checks to avoid dead code compilation without using OpenGL
- finished code reorganization (began into previous patches).
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 30 Aug 2003 17:07:59 +0000 |
parents | e5bc29de3f0a |
children | 355632dca928 |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_CDStatus</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_CDOpen" | |
17 HREF="sdlcdopen.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_CDPlay" | |
20 HREF="sdlcdplay.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="sdlcdopen.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="sdlcdplay.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="SDLCDSTATUS" | |
71 >SDL_CDStatus</A | |
72 ></H1 | |
73 ><DIV | |
74 CLASS="REFNAMEDIV" | |
75 ><A | |
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76 NAME="AEN6920" |
0 | 77 ></A |
78 ><H2 | |
79 >Name</H2 | |
80 >SDL_CDStatus -- Returns the current status of the given drive.</DIV | |
81 ><DIV | |
82 CLASS="REFSYNOPSISDIV" | |
83 ><A | |
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84 NAME="AEN6923" |
0 | 85 ></A |
86 ><H2 | |
87 >Synopsis</H2 | |
88 ><DIV | |
89 CLASS="FUNCSYNOPSIS" | |
90 ><A | |
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91 NAME="AEN6924" |
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 >CDstatus <B | |
103 CLASS="FSFUNC" | |
104 >SDL_CDStatus</B | |
105 ></CODE | |
106 >(SDL_CD *cdrom);</CODE | |
107 ></P | |
108 ><PRE | |
109 CLASS="FUNCSYNOPSISINFO" | |
110 >/* Given a status, returns true if there's a disk in the drive */ | |
111 #define CD_INDRIVE(status) ((int)status > 0)</PRE | |
112 ><P | |
113 ></P | |
114 ></DIV | |
115 ></DIV | |
116 ><DIV | |
117 CLASS="REFSECT1" | |
118 ><A | |
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119 NAME="AEN6931" |
0 | 120 ></A |
121 ><H2 | |
122 >Description</H2 | |
123 ><P | |
124 >This function returns the current status of the given drive. Status is described like so: | |
125 <PRE | |
126 CLASS="PROGRAMLISTING" | |
127 >typedef enum { | |
128 CD_TRAYEMPTY, | |
129 CD_STOPPED, | |
130 CD_PLAYING, | |
131 CD_PAUSED, | |
132 CD_ERROR = -1 | |
133 } CDstatus;</PRE | |
134 ></P | |
135 ><P | |
136 >If the drive has a CD in it, the table of contents of the CD and current | |
137 play position of the CD will be stored in the SDL_CD structure.</P | |
138 ><P | |
139 >The macro <TT | |
140 CLASS="LITERAL" | |
141 >CD_INDRIVE</TT | |
142 > is provided for convenience, | |
143 and given a status returns true if there's a disk in the drive.</P | |
144 ><DIV | |
145 CLASS="NOTE" | |
146 ><BLOCKQUOTE | |
147 CLASS="NOTE" | |
148 ><P | |
149 ><B | |
150 >Note: </B | |
151 ><TT | |
152 CLASS="FUNCTION" | |
153 >SDL_CDStatus</TT | |
154 > also updates the <A | |
155 HREF="sdlcd.html" | |
156 ><SPAN | |
157 CLASS="STRUCTNAME" | |
158 >SDL_CD</SPAN | |
159 ></A | |
160 > structure passed to it.</P | |
161 ></BLOCKQUOTE | |
162 ></DIV | |
163 ></DIV | |
164 ><DIV | |
165 CLASS="REFSECT1" | |
166 ><A | |
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167 NAME="AEN6943" |
0 | 168 ></A |
169 ><H2 | |
170 >Example</H2 | |
171 ><PRE | |
172 CLASS="PROGRAMLISTING" | |
173 >int playTrack(int track) | |
174 { | |
175 int playing = 0; | |
176 | |
177 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) { | |
178 /* clamp to the actual number of tracks on the CD */ | |
179 if (track >= cdrom->numtracks) { | |
180 track = cdrom->numtracks-1; | |
181 } | |
182 | |
183 if ( SDL_CDPlayTracks(cdrom, track, 0, 1, 0) == 0 ) { | |
184 playing = 1; | |
185 } | |
186 } | |
187 return playing; | |
188 }</PRE | |
189 ></DIV | |
190 ><DIV | |
191 CLASS="REFSECT1" | |
192 ><A | |
181
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193 NAME="AEN6946" |
0 | 194 ></A |
195 ><H2 | |
196 >See Also</H2 | |
197 ><P | |
198 ><A | |
199 HREF="sdlcd.html" | |
200 ><TT | |
201 CLASS="FUNCTION" | |
202 >SDL_CD</TT | |
203 ></A | |
204 ></P | |
205 ></DIV | |
206 ><DIV | |
207 CLASS="NAVFOOTER" | |
208 ><HR | |
209 ALIGN="LEFT" | |
210 WIDTH="100%"><TABLE | |
211 WIDTH="100%" | |
212 BORDER="0" | |
213 CELLPADDING="0" | |
214 CELLSPACING="0" | |
215 ><TR | |
216 ><TD | |
217 WIDTH="33%" | |
218 ALIGN="left" | |
219 VALIGN="top" | |
220 ><A | |
221 HREF="sdlcdopen.html" | |
222 >Prev</A | |
223 ></TD | |
224 ><TD | |
225 WIDTH="34%" | |
226 ALIGN="center" | |
227 VALIGN="top" | |
228 ><A | |
229 HREF="index.html" | |
230 >Home</A | |
231 ></TD | |
232 ><TD | |
233 WIDTH="33%" | |
234 ALIGN="right" | |
235 VALIGN="top" | |
236 ><A | |
237 HREF="sdlcdplay.html" | |
238 >Next</A | |
239 ></TD | |
240 ></TR | |
241 ><TR | |
242 ><TD | |
243 WIDTH="33%" | |
244 ALIGN="left" | |
245 VALIGN="top" | |
246 >SDL_CDOpen</TD | |
247 ><TD | |
248 WIDTH="34%" | |
249 ALIGN="center" | |
250 VALIGN="top" | |
251 ><A | |
252 HREF="cdrom.html" | |
253 >Up</A | |
254 ></TD | |
255 ><TD | |
256 WIDTH="33%" | |
257 ALIGN="right" | |
258 VALIGN="top" | |
259 >SDL_CDPlay</TD | |
260 ></TR | |
261 ></TABLE | |
262 ></DIV | |
263 ></BODY | |
264 ></HTML | |
265 > |