Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 792)

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CHAPTER 22

Transport Interface

22-4 About Transports

completionScript

A Boolean; if true, the transport sends the

ItemCompletionScript message to the application when

the item’s state changes or when errors occur. For more

details on this mechanism, see the section “Completion and

Logging” beginning on page 22-16.

needsResolve A Boolean that is set to true if the body slot contains an

alias, rather than the actual data. This means that the format

method

ResolveBody must be called before the item is sent.

For transports that need addressing information, this is usually encapsulated in

name references. A name reference is a frame that contains a soup entry or an

alias to one, usually from the Names soup, hence the term name reference. The

system includes built-in data deﬁnitions that can access name references, along

with associated view deﬁnitions to display the information stored in or referenced

by a name reference. For more information about using name references for

addressing information, see the section “Creating a Name Reference” beginning on

page 21-27. For more on name references in general, see “Name References”

(page 5-1) in Newton Programmer’s Reference.

The following slots in the item frame deﬁne the recipient and sender addresses:

toRef An array containing one or more name references used to

identify the recipient(s) of the item.

fromRef A frame containing a name reference that identiﬁes the

sender. This information is usually extracted from the

sender’s current owner card, or current persona. The transport

normally sets this slot in its

NewItem method. For more

information, see the section “Obtaining an Item Frame”

beginning on page 22-13.

cc An array containing one or more name references used to

identify recipients of copies of the item. Typically, this slot is

used by e-mail transports.

bcc An array containing one or more name references used to

identify recipients of blind copies of the item. Typically, this

slot is used by e-mail transports.

In addition, there may be other address slots used by some transports.

For a detailed description of all the item frame slots that are important to the Routing

interface, see “Item Frame” (page 18-1) in Newton Programmer’s Reference.

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