Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 706)

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CHAPTER 19

Built-in Applications and System Data

19-32 Notes

Using the Notes Application 19

This section describes the methods that add new notes, and the Notes soup format.

To obtain a reference to the Notes application in order to send it messages, use the

following code:

GetRoot().paperroll

Note that future Newton devices may not include the Notes application. You should

therefore check for the existence of the Notes application before trying to access it.

Use the following code to test for this:

if GetRoot().paperroll then ...

Creating New Notes 19

The Notes method MakeTextNote(string,addIt) creates a note that consists of a

single string. The

addIt parameter is a Boolean; pass true for addIt to add the note

to the Notes soup. The following code adds a note programmatically:

GetRoot().paperroll:MakeTextNote

("Isn’t this easy?",true);

If you want to add a more sophisticated note, follow these steps:

1. Create a note with

MakeTextNote, but pass nil for the addIt parameter.

MakeTextNote returns a note frame.

2. Modify the

data slot of the frame returned by MakeTextNote. The data slot

must be an array of frames that have the format described in “Notes Soup

Format” (page 16-82) in Newton Programmer’s Reference.

3. Call the Notes method

NewNote with the modiﬁed note frame.

Below is an example of this procedure:

// create a note frame

notes := GetRoot().paperroll;

theNote := notes:MakeTextNote ( "", nil);

// modify the data slot. Note that the data array now

// contains a frame for the empty string.

theNote.data :=

[{viewStationery :'para, // a text object

viewBounds : {top:3, left:3, right:97, bottom:97},

text : "I’m just a string."},

{viewStationery :'poly, //a polygon object

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Apple Newton Utilities Guide de l'utilisateur Page 706

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