view docs/html/sdlcdopen.html @ 1643:51038e80ae59

More general fix for bug #189 The clipping is done at a higher level, and the low level functions are passed clipped rectangles. Drivers which don't support source clipping have not been changed, so the image will be squished instead of clipped, but at least they will no longer crash when the destination rect was out of bounds.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 17 Apr 2006 06:47:23 +0000
parents 355632dca928
children
line wrap: on
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<HTML
><HEAD
><TITLE
>SDL_CDOpen</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
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><H1
><A
NAME="SDLCDOPEN"
></A
>SDL_CDOpen</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN7274"
></A
><H2
>Name</H2
>SDL_CDOpen&nbsp;--&nbsp;Opens a CD-ROM drive for access.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN7277"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN7278"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>SDL_CD *<B
CLASS="FSFUNC"
>SDL_CDOpen</B
></CODE
>(int drive);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7284"
></A
><H2
>Description</H2
><P
>Opens a CD-ROM drive for access.  It returns a <A
HREF="sdlcd.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_CD</SPAN
></A
> structure on success, or <TT
CLASS="LITERAL"
>NULL</TT
> 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
CLASS="LITERAL"
>NULL</TT
> CD-ROM handle. </P
><P
>Drives are numbered starting with 0.  
Drive 0 is the system default CD-ROM.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7292"
></A
><H2
>Examples</H2
><PRE
CLASS="PROGRAMLISTING"
>SDL_CD *cdrom;
int cur_track;
int min, sec, frame;
SDL_Init(SDL_INIT_CDROM);
atexit(SDL_Quit);

/* Check for CD drives */
if(!SDL_CDNumDrives()){
  /* None found */
  fprintf(stderr, "No CDROM devices available\n");
  exit(-1);
}

/* Open the default drive */
cdrom=SDL_CDOpen(0);

/* Did if open? Check if cdrom is NULL */
if(!cdrom){
  fprintf(stderr, "Couldn't open drive: %s\n", SDL_GetError());
  exit(-1);
}

/* Print Volume info */
printf("Name: %s\n", SDL_CDName(0));
printf("Tracks: %d\n", cdrom-&#62;numtracks);
for(cur_track=0;cur_track &#60; cdrom-&#62;numtracks; cur_track++){
  FRAMES_TO_MSF(cdrom-&#62;track[cur_track].length, &#38;min, &#38;sec, &#38;frame);
  printf("\tTrack %d: Length %d:%d\n", cur_track, min, sec);
}

SDL_CDClose(cdrom);</PRE
></DIV
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CLASS="REFSECT1"
><A
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></A
><H2
>See Also</H2
><P
><A
HREF="sdlcd.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_CD</SPAN
></A
>,
<A
HREF="sdlcdtrack.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_CDtrack</SPAN
></A
>,
<A
HREF="sdlcdclose.html"
><TT
CLASS="FUNCTION"
>SDL_CDClose</TT
></A
></P
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