annotate docs/html/guidecdromexamples.html @ 2171:4bd2dc41fc15

Fixed compiling the x11 driver
author Sam Lantinga <slouken@libsdl.org>
date Wed, 11 Jul 2007 14:49:44 +0000
parents 355632dca928
children
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1 <HTML
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2 ><HEAD
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3 ><TITLE
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4 >CDROM Examples</TITLE
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5 ><META
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6 NAME="GENERATOR"
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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8 "><LINK
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9 REL="HOME"
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10 TITLE="SDL Library Documentation"
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11 HREF="index.html"><LINK
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12 REL="UP"
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13 TITLE="Examples"
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14 HREF="guideexamples.html"><LINK
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15 REL="PREVIOUS"
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16 TITLE="Audio Examples"
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17 HREF="guideaudioexamples.html"><LINK
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18 REL="NEXT"
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19 TITLE="Time Examples"
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20 HREF="guidetimeexamples.html"></HEAD
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21 ><BODY
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22 CLASS="SECT1"
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23 BGCOLOR="#FFF8DC"
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24 TEXT="#000000"
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25 LINK="#0000ee"
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26 VLINK="#551a8b"
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27 ALINK="#ff0000"
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28 ><DIV
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29 CLASS="NAVHEADER"
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30 ><TABLE
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31 SUMMARY="Header navigation table"
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32 WIDTH="100%"
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33 BORDER="0"
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34 CELLPADDING="0"
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35 CELLSPACING="0"
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36 ><TR
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37 ><TH
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38 COLSPAN="3"
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39 ALIGN="center"
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40 >SDL Library Documentation</TH
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41 ></TR
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42 ><TR
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43 ><TD
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44 WIDTH="10%"
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45 ALIGN="left"
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46 VALIGN="bottom"
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47 ><A
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48 HREF="guideaudioexamples.html"
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49 ACCESSKEY="P"
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50 >Prev</A
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51 ></TD
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52 ><TD
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53 WIDTH="80%"
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54 ALIGN="center"
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55 VALIGN="bottom"
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56 >Chapter 4. Examples</TD
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57 ><TD
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58 WIDTH="10%"
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59 ALIGN="right"
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60 VALIGN="bottom"
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61 ><A
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62 HREF="guidetimeexamples.html"
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63 ACCESSKEY="N"
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64 >Next</A
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65 ></TD
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66 ></TR
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67 ></TABLE
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68 ><HR
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69 ALIGN="LEFT"
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70 WIDTH="100%"></DIV
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71 ><DIV
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72 CLASS="SECT1"
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73 ><H1
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74 CLASS="SECT1"
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75 ><A
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76 NAME="GUIDECDROMEXAMPLES"
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77 ></A
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78 >CDROM Examples</H1
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79 ><P
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80 ></P
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81 ><DIV
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82 CLASS="SECT2"
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83 ><H2
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84 CLASS="SECT2"
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85 ><A
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86 NAME="AEN393"
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87 ></A
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88 >Listing CD-ROM drives</H2
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89 ><P
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90 ><PRE
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91 CLASS="PROGRAMLISTING"
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92 > #include "SDL.h"
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93
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94 /* Initialize SDL first */
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95 if ( SDL_Init(SDL_INIT_CDROM) &#60; 0 ) {
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96 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
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97 exit(1);
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98 }
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99 atexit(SDL_Quit);
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100
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101 /* Find out how many CD-ROM drives are connected to the system */
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102 printf("Drives available: %d\n", SDL_CDNumDrives());
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103 for ( i=0; i&#60;SDL_CDNumDrives(); ++i ) {
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104 printf("Drive %d: \"%s\"\n", i, SDL_CDName(i));
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105 }</PRE
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106 ></P
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107 ></DIV
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108 ><DIV
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109 CLASS="SECT2"
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110 ><H2
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111 CLASS="SECT2"
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112 ><A
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113 NAME="AEN397"
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114 ></A
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115 >Opening the default drive</H2
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116 ><P
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117 ><PRE
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118 CLASS="PROGRAMLISTING"
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119 > SDL_CD *cdrom;
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120 CDstatus status;
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121 char *status_str;
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122
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123 cdrom = SDL_CDOpen(0);
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124 if ( cdrom == NULL ) {
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125 fprintf(stderr, "Couldn't open default CD-ROM drive: %s\n",
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126 SDL_GetError());
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127 exit(2);
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128 }
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129
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130 status = SDL_CDStatus(cdrom);
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131 switch (status) {
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132 case CD_TRAYEMPTY:
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133 status_str = "tray empty";
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134 break;
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135 case CD_STOPPED:
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136 status_str = "stopped";
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137 break;
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138 case CD_PLAYING:
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139 status_str = "playing";
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140 break;
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141 case CD_PAUSED:
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142 status_str = "paused";
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143 break;
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144 case CD_ERROR:
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145 status_str = "error state";
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146 break;
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147 }
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148 printf("Drive status: %s\n", status_str);
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149 if ( status &#62;= CD_PLAYING ) {
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150 int m, s, f;
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151 FRAMES_TO_MSF(cdrom-&#62;cur_frame, &#38;m, &#38;s, &#38;f);
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152 printf("Currently playing track %d, %d:%2.2d\n",
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153 cdrom-&#62;track[cdrom-&#62;cur_track].id, m, s);
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154 }</PRE
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155 ></P
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156 ></DIV
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157 ><DIV
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158 CLASS="SECT2"
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159 ><H2
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160 CLASS="SECT2"
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161 ><A
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162 NAME="AEN401"
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163 ></A
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164 >Listing the tracks on a CD</H2
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165 ><P
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166 ><PRE
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167 CLASS="PROGRAMLISTING"
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168 > SDL_CD *cdrom; /* Assuming this has already been set.. */
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169 int i;
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170 int m, s, f;
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171
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172 SDL_CDStatus(cdrom);
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173 printf("Drive tracks: %d\n", cdrom-&#62;numtracks);
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174 for ( i=0; i&#60;cdrom-&#62;numtracks; ++i ) {
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175 FRAMES_TO_MSF(cdrom-&#62;track[i].length, &#38;m, &#38;s, &#38;f);
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176 if ( f &#62; 0 )
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177 ++s;
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178 printf("\tTrack (index %d) %d: %d:%2.2d\n", i,
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179 cdrom-&#62;track[i].id, m, s);
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180 }</PRE
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181 ></P
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182 ></DIV
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183 ><DIV
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184 CLASS="SECT2"
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185 ><H2
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186 CLASS="SECT2"
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187 ><A
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188 NAME="AEN405"
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189 ></A
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190 >Play an entire CD</H2
0
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191 ><P
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192 ><PRE
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193 CLASS="PROGRAMLISTING"
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194 > SDL_CD *cdrom; /* Assuming this has already been set.. */
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195
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196 // Play entire CD:
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197 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
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198 SDL_CDPlayTracks(cdrom, 0, 0, 0, 0);
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199
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200 // Play last track:
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201 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
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202 SDL_CDPlayTracks(cdrom, cdrom-&#62;numtracks-1, 0, 0, 0);
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203 }
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204
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205 // Play first and second track and 10 seconds of third track:
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206 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
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207 SDL_CDPlayTracks(cdrom, 0, 0, 2, CD_FPS * 10);</PRE
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208 ></P
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209 ></DIV
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210 ></DIV
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211 ><DIV
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212 CLASS="NAVFOOTER"
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213 ><HR
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214 ALIGN="LEFT"
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215 WIDTH="100%"><TABLE
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216 SUMMARY="Footer navigation table"
0
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217 WIDTH="100%"
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218 BORDER="0"
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219 CELLPADDING="0"
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220 CELLSPACING="0"
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221 ><TR
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222 ><TD
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223 WIDTH="33%"
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224 ALIGN="left"
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225 VALIGN="top"
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226 ><A
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227 HREF="guideaudioexamples.html"
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228 ACCESSKEY="P"
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229 >Prev</A
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230 ></TD
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231 ><TD
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232 WIDTH="34%"
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233 ALIGN="center"
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234 VALIGN="top"
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235 ><A
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236 HREF="index.html"
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237 ACCESSKEY="H"
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238 >Home</A
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239 ></TD
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240 ><TD
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241 WIDTH="33%"
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242 ALIGN="right"
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243 VALIGN="top"
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244 ><A
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245 HREF="guidetimeexamples.html"
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246 ACCESSKEY="N"
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247 >Next</A
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248 ></TD
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249 ></TR
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250 ><TR
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251 ><TD
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252 WIDTH="33%"
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253 ALIGN="left"
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254 VALIGN="top"
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255 >Audio Examples</TD
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256 ><TD
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257 WIDTH="34%"
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258 ALIGN="center"
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259 VALIGN="top"
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260 ><A
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261 HREF="guideexamples.html"
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262 ACCESSKEY="U"
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263 >Up</A
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264 ></TD
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265 ><TD
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266 WIDTH="33%"
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267 ALIGN="right"
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268 VALIGN="top"
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269 >Time Examples</TD
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270 ></TR
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271 ></TABLE
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272 ></DIV
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273 ></BODY
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274 ></HTML
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275 >