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| 5131 | clevermous | 1 | |
| 2 | > |
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| 3 | > |
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| 4 | >CD-ROM |
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| 5 | > |
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| 6 | NAME="GENERATOR" |
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| 7 | CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
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| 8 | "> |
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| 9 | REL="HOME" |
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| 10 | TITLE="SDL Library Documentation" |
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| 11 | HREF="index.html"> |
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| 12 | REL="UP" |
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| 13 | TITLE="SDL Reference" |
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| 14 | HREF="reference.html"> |
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| 15 | REL="PREVIOUS" |
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| 16 | TITLE="SDL_CloseAudio" |
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| 17 | HREF="sdlcloseaudio.html"> |
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| 18 | REL="NEXT" |
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| 19 | TITLE="SDL_CDNumDrives" |
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| 20 | HREF="sdlcdnumdrives.html"> |
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| 21 | NAME="KEYWORD" |
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| 22 | CONTENT="cdrom"> |
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| 23 | NAME="KEYWORD" |
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| 24 | CONTENT="function"> |
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| 25 | > |
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| 26 | CLASS="CHAPTER" |
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| 27 | BGCOLOR="#FFF8DC" |
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| 28 | TEXT="#000000" |
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| 29 | LINK="#0000ee" |
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| 30 | VLINK="#551a8b" |
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| 31 | ALINK="#ff0000" |
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| 32 | > |
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| 33 | CLASS="NAVHEADER" |
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| 34 | > |
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| 35 | WIDTH="100%" |
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| 36 | BORDER="0" |
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| 37 | CELLPADDING="0" |
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| 38 | CELLSPACING="0" |
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| 39 | > |
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| 40 | > |
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| 41 | COLSPAN="3" |
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| 42 | ALIGN="center" |
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| 43 | >SDL Library Documentation |
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| 44 | > |
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| 45 | > |
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| 46 | > |
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| 47 | WIDTH="10%" |
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| 48 | ALIGN="left" |
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| 49 | VALIGN="bottom" |
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| 50 | > |
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| 51 | HREF="sdlcloseaudio.html" |
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| 52 | >Prev |
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| 53 | > |
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| 54 | > |
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| 55 | WIDTH="80%" |
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| 56 | ALIGN="center" |
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| 57 | VALIGN="bottom" |
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| 58 | > |
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| 59 | > |
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| 60 | WIDTH="10%" |
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| 61 | ALIGN="right" |
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| 62 | VALIGN="bottom" |
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| 63 | > |
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| 64 | HREF="sdlcdnumdrives.html" |
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| 65 | >Next |
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| 66 | > |
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| 67 | > |
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| 68 | > |
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| 69 | > |
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| 70 | ALIGN="LEFT" |
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| 71 | WIDTH="100%"> |
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| 72 | > |
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| 73 | CLASS="CHAPTER" |
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| 74 | > |
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| 75 | > |
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| 76 | NAME="CDROM" |
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| 77 | >Chapter 11. CD-ROM |
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| 78 | > |
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| 79 | > |
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| 80 | CLASS="TOC" |
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| 81 | > |
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| 82 | > |
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| 83 | > |
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| 84 | >Table of Contents |
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| 85 | > |
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| 86 | > |
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| 87 | > |
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| 88 | HREF="sdlcdnumdrives.html" |
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| 89 | >SDL_CDNumDrives |
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| 90 | > — Returns the number of CD-ROM drives on the system. |
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| 91 | > |
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| 92 | > |
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| 93 | HREF="sdlcdname.html" |
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| 94 | >SDL_CDName |
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| 95 | > — Returns a human-readable, system-dependent identifier for the CD-ROM. |
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| 96 | > |
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| 97 | > |
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| 98 | HREF="sdlcdopen.html" |
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| 99 | >SDL_CDOpen |
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| 100 | > — Opens a CD-ROM drive for access. |
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| 101 | > |
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| 102 | > |
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| 103 | HREF="sdlcdstatus.html" |
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| 104 | >SDL_CDStatus |
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| 105 | > — Returns the current status of the given drive. |
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| 106 | > |
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| 107 | > |
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| 108 | HREF="sdlcdplay.html" |
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| 109 | >SDL_CDPlay |
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| 110 | > — Play a CD |
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| 111 | > |
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| 112 | > |
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| 113 | HREF="sdlcdplaytracks.html" |
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| 114 | >SDL_CDPlayTracks |
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| 115 | > — Play the given CD track(s) |
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| 116 | > |
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| 117 | > |
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| 118 | HREF="sdlcdpause.html" |
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| 119 | >SDL_CDPause |
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| 120 | > — Pauses a CDROM |
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| 121 | > |
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| 122 | > |
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| 123 | HREF="sdlcdresume.html" |
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| 124 | >SDL_CDResume |
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| 125 | > — Resumes a CDROM |
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| 126 | > |
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| 127 | > |
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| 128 | HREF="sdlcdstop.html" |
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| 129 | >SDL_CDStop |
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| 130 | > — Stops a CDROM |
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| 131 | > |
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| 132 | > |
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| 133 | HREF="sdlcdeject.html" |
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| 134 | >SDL_CDEject |
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| 135 | > — Ejects a CDROM |
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| 136 | > |
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| 137 | > |
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| 138 | HREF="sdlcdclose.html" |
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| 139 | >SDL_CDClose |
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| 140 | > — Closes a SDL_CD handle |
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| 141 | > |
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| 142 | > |
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| 143 | HREF="sdlcd.html" |
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| 144 | >SDL_CD |
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| 145 | > — CDROM Drive Information |
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| 146 | > |
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| 147 | > |
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| 148 | HREF="sdlcdtrack.html" |
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| 149 | >SDL_CDtrack |
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| 150 | > — CD Track Information Structure |
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| 151 | > |
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| 152 | > |
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| 153 | > |
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| 154 | >SDL supports audio control of up to 32 local CD-ROM drives at once. |
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| 155 | > |
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| 156 | >You use this API to perform all the basic functions of a CD player, |
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| 157 | including listing the tracks, playing, stopping, and ejecting the CD-ROM. |
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| 158 | (Currently, multi-changer CD drives are not supported.) |
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| 159 | > |
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| 160 | >Before you call any of the SDL CD-ROM functions, you must first call |
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| 161 | " |
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| 162 | CLASS="FUNCTION" |
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| 163 | >SDL_Init(SDL_INIT_CDROM) |
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| 164 | >", which scans the system for |
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| 165 | CD-ROM drives, and sets the program up for audio control. Check the |
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| 166 | return code, which should be |
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| 167 | CLASS="RETURNVALUE" |
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| 168 | >0 |
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| 169 | >, to see if there |
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| 170 | were any errors in starting up. |
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| 171 | > |
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| 172 | >After you have initialized the library, you can find out how many drives |
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| 173 | are available using the |
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| 174 | CLASS="FUNCTION" |
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| 175 | >SDL_CDNumDrives() |
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| 176 | > function. |
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| 177 | The first drive listed is the system default CD-ROM drive. After you have |
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| 178 | chosen a drive, and have opened it with |
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| 179 | CLASS="FUNCTION" |
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| 180 | >SDL_CDOpen() |
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| 181 | >, |
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| 182 | you can check the status and start playing if there's a CD in the drive. |
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| 183 | > |
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| 184 | >A CD-ROM is organized into one or more tracks, each consisting of a certain |
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| 185 | number of "frames". Each frame is ~2K in size, and at normal playing speed, |
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| 186 | a CD plays 75 frames per second. SDL works with the number of frames on a |
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| 187 | CD, but this can easily be converted to the more familiar minutes/seconds |
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| 188 | format by using the |
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| 189 | CLASS="FUNCTION" |
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| 190 | >FRAMES_TO_MSF() |
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| 191 | > macro. |
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| 192 | > |
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| 193 | > |
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| 194 | CLASS="NAVFOOTER" |
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| 195 | > |
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| 196 | ALIGN="LEFT" |
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| 197 | WIDTH="100%"> |
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| 198 | WIDTH="100%" |
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| 199 | BORDER="0" |
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| 200 | CELLPADDING="0" |
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| 201 | CELLSPACING="0" |
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| 202 | > |
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| 203 | > |
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| 204 | WIDTH="33%" |
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| 205 | ALIGN="left" |
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| 206 | VALIGN="top" |
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| 207 | > |
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| 208 | HREF="sdlcloseaudio.html" |
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| 209 | >Prev |
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| 210 | > |
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| 211 | > |
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| 212 | WIDTH="34%" |
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| 213 | ALIGN="center" |
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| 214 | VALIGN="top" |
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| 215 | > |
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| 216 | HREF="index.html" |
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| 217 | >Home |
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| 218 | > |
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| 219 | > |
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| 220 | WIDTH="33%" |
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| 221 | ALIGN="right" |
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| 222 | VALIGN="top" |
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| 223 | > |
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| 224 | HREF="sdlcdnumdrives.html" |
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| 225 | >Next |
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| 226 | > |
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| 227 | > |
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| 228 | > |
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| 229 | > |
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| 230 | WIDTH="33%" |
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| 231 | ALIGN="left" |
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| 232 | VALIGN="top" |
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| 233 | >SDL_CloseAudio |
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| 234 | > |
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| 235 | WIDTH="34%" |
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| 236 | ALIGN="center" |
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| 237 | VALIGN="top" |
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| 238 | > |
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| 239 | HREF="reference.html" |
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| 240 | >Up |
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| 241 | > |
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| 242 | > |
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| 243 | WIDTH="33%" |
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| 244 | ALIGN="right" |
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| 245 | VALIGN="top" |
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| 246 | >SDL_CDNumDrives |
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| 247 | > |
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| 248 | > |
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| 249 | > |
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| 250 | > |
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| 251 | > |
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| 252 | > |