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SDL_CDStatus (3)
  • >> SDL_CDStatus (3) ( Разные man: Библиотечные вызовы )
  •  

    NAME

    SDL_CDStatus- Returns the current status of the given drive.
     
    

    SYNOPSIS

    #include "SDL.h"

    CDstatus SDL_CDStatus(SDL_CD *cdrom); /* Given a status, returns true if there's a disk in the drive */ #define CD_INDRIVE(status) ((int)status > 0)  

    DESCRIPTION

    This function returns the current status of the given drive. Status is described like so:

    typedef enum {
      CD_TRAYEMPTY,
      CD_STOPPED,
      CD_PLAYING,
      CD_PAUSED,
      CD_ERROR = -1
    } CDstatus;
    

    If the drive has a CD in it, the table of contents of the CD and current play position of the CD will be stored in the SDL_CD structure.

    The macro CD_INDRIVE is provided for convenience, and given a status returns true if there's a disk in the drive.

    Note:

    SDL_CDStatus also updates the SDL_CD structure passed to it.

     

    EXAMPLE

    int playTrack(int track)
    {
      int playing = 0;
    
      if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
      /* clamp to the actual number of tracks on the CD */
        if (track >= cdrom->numtracks) {
          track = cdrom->numtracks-1;
        }
    
        if ( SDL_CDPlayTracks(cdrom, track, 0, 1, 0) == 0 ) {
          playing = 1;
        }
      }
      return playing;
    }
    

     

    SEE ALSO

    SDL_CD


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    EXAMPLE
    SEE ALSO


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