Stationery

Using Stationery

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.