Previous Next

                                             782
   CHAPTER 9                                                         Multimedia Features




                           TABLE 9.28 Monitor specifier values
   VALUE       DESCRIPTION

   0           The monitor containing the largest section of the document window

   1           The monitor containing the smallest section of the document window

   2           Primary monitor. If no monitor is considered primary, use case 0

   3           Monitor with the greatest color depth

   4           Monitor with the greatest area (in pixels squared)

   5           Monitor with the greatest height (in pixels)

   6           Monitor with the greatest width (in pixels)

   For some of these values, it is possible have a “tie” at play-time; for example, two
   monitors might have the same color depth. Ties are broken in an implementa-
   tion-dependent manner.


9.2 Sounds

   A sound object (PDF 1.2) is a stream containing sample values that define a sound
   to be played through the computer’s speakers. The Sound entry in a sound anno-
   tation or sound action dictionary (see Table 8.36 on page 638 and Table 8.58 on
   page 664) identifies a sound object representing the sound to be played when the
   annotation is activated.

   Since a sound object is a stream, it can contain any of the standard entries com-
   mon to all streams, as described in Table 3.4 on page 62. In particular, if it con-
   tains an F (file specification) entry, the sound is defined in an external file. This
   sound file must be self-describing, containing all information needed to render
   the sound; no additional information need be present in the PDF file.

   Note: The AIFF, AIFF-C (Mac OS), RIFF (. wav), and snd (. au) file formats are all
   self-describing.

   If no F entry is present, the sound object itself contains the sample data and all
   other information needed to define the sound. Table 9.29 shows the additional
   dictionary entries specific to a sound object.

Previous Next