Prefs and formulas rolls 19, About the prefs and formulas rolls 19 – Apple Newton Programmer’s Newton 2.0 (for Newton 2.0) User Manual

Page 709

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C H A P T E R 1 9

Built-in Applications and System Data

Prefs and Formulas Rolls

19-35

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within the In/Out Box soup entry, where a user can view it. Applications may

be passed an In/Out Box soup entry as part of the putting away process. For more
information on handling items coming from the In/Out Box, see “Receiving Data”
beginning on page 21-31 in

Newton Programmer’s Guide

.

The structure of the

body

frame is described in “Fax Soup Entries Reference”

(page 16-94) in

Newton Programmer’s

Reference.

Prefs and Formulas Rolls

19

This section describes the Prefs and Formulas API’s. Figure 19-8 shows custom
panels added to these two applications by DTS sample code.

Figure 19-8

Custom Prefs and Formulas Panels

About the Prefs and Formulas Rolls

19

The Prefs application presents the user with a list of items for which such preferences
as handwriting recognition and sound levels can be set. These are system-wide or
system-level preferences, do not add application-specific preferences to the Prefs
roll. The Formulas application contains a list of items that perform some sort of
calculation for the user.

You can extend the Prefs and Formulas rolls through the registry functions:

RegPrefs

and

RegFormulas

.

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