Apple Newton Utilities User's Guide download pdf (Page 189)

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CHAPTER 5

Stationery

Using Stationery 5-7

newEntry.class := kDataSymbol;

newEntry.viewStationery := kDataSymbol;

newEntry.(kDataSymbol).dueDate:=time();

newEntry;

end;

Extending the Notes Application 5

You may extend an existing application, such as the built-in Notes application, by

adding your own stationery. This is done by building and downloading an NTK

auto part that deﬁnes your stationery extensions.

The sample project used to illustrate many of the following sections consists of

these ﬁles, in the processing order shown:

■ ExtendNotes.rsrc

■ ExtendNotes Definitions.f

■ iouDataDef

■ iouDefaultViewDef

■ iouPrintFormat

■ ExtendNotes Install & Remove.f

Of these, the iouDataDef, iouDefaultViewDef, and ExtendNotes

Install & Remove.f files are used in the examples in this chapter. The

resource ﬁle (

ExtendNotes.rsrc) contains the icon that is displayed next to the

dataDef name in the New menu (as shown in Figure 5-1). The deﬁnitions ﬁle

(

ExtendNotes Definitions.f) is the ﬁle in which the constants, some of

which are used in examples, are deﬁned. Finally, the

iouPrintFormat ﬁle

deﬁnes a print format for the stationery.

Determining the SuperSymbol of the Host 5

Using stationery requires the presence of a matching superSymbol slot in both

the host application and the dataDef component of your stationery. The value in the

superSymbol slot is used to link a dataDef to an application.

If you do not know the value of the

superSymbol slot for an application that is

installed on your Newton device, you may use the global function

GetDefs to see

all the dataDefs that are registered by the system.

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