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                                                      660
       CHAPTER 8                                                                   Interactive Features



       The optional Win, Mac, and Unix entries allow the action dictionary to include
       platform-specific parameters for launching the designated application. If no
       such entry is present for the given platform, the F entry is used instead. Table
       8.54 shows the platform-specific launch parameters for the Windows platform.
       Parameters for the Mac OS and UNIX platforms are not yet defined at the time
       of publication.

                          TABLE 8.53 Additional entries specific to a launch action
KEY         TYPE                 VALUE

S           name                 (Required) The type of action that this dictionary describes; must be Launch
                                 for a launch action.

F           file specification   (Required if none of the entries Win, Mac, or Unix is present) The application to
                                 be launched or the document to be opened or printed. If this entry is absent
                                 and the viewer application does not understand any of the alternative entries,
                                 it should do nothing.

Win         dictionary           (Optional) A dictionary containing Windows-specific launch parameters (see
                                 Table 8.54; see also implementation note 101 in Appendix H).

Mac         (undefined)          (Optional) Mac OS–specific launch parameters; not yet defined.

Unix        (undefined)          (Optional) UNIX-specific launch parameters; not yet defined.

NewWindow   boolean              (Optional; PDF 1.2) A flag specifying whether to open the destination docu-
                                 ment in a new window. If this flag is false, the destination document replaces
                                 the current document in the same window. If this entry is absent, the viewer
                                 application should behave in accordance with the current user preference.
                                 This entry is ignored if the file designated by the F entry is not a PDF docu-
                                 ment.




                      TABLE 8.54 Entries in a Windows launch parameter dictionary
KEY         TYPE                 VALUE

F           byte string          (Required) The file name of the application to be launched or the document
                                 to be opened or printed, in standard Windows pathname format. If the name
                                 string includes a backslash character (\), the backslash must itself be preceded
                                 by a backslash.
                                 Note: This value must be a simple string; it is not a file specification.

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