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CHAPTER 7
Routing and Communications
7-36 Routing Alternatives
Programmed Sending 7
An application can send an item programmatically, using a specific transport,
without any user intervention. (The Action button is not used in this case.)
For example, an application might have a transport make a connection when-
ever a user opens the application, and break the connection when the user
closes the application. Another application might poll for data, such as pager
messages, and could have a transport poll more frequently (and use more
power) while the application is open than when the application is closed.
If your application has its own method for routing apart from the Action
button, it can display a routing slip for the user to confirm or cancel the
action as well as specify additional routing information. If your application
routes items programmatically to an e-mail, fax, or call transport, you may
want to allow users to choose the recipient. Your application can use the
same method as the built-in routing slips (see “Choosing Fax or E-mail
Recipients” on page 7-16). If you want to provide a way for users to select a
different printer, your application can use the same printer-selection method
as the Print routing slip (see “Choosing a Printer” on page 7-15). Before
instituting a programmed routing action, you may want to allow the user to
choose a format for the item being sent. Your application can get a list of
formats that can handle the item. Using this list, the application could make
available a picker from which the user could choose a format. You may also
want to allow the user to choose a transport for the item being sent. Your
application can get a list of transports that can handle specific formats. Using
this list, the application could make available a picker from which the user
could choose a transport.