Apple Newton Utilities Guia do Utilizador descarregar pdf (Página 698)

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CHAPTER 19

Built-in Applications and System Data

19-24 To Do List

Also, note that some of these methods only work when the To Do List is open. You

can ensure the To Do List is open by calling the Dates method

DisplayDate

passing in

'toDoList for the format parameter as in the following code:

//open Dates and make it show today’s To Do List

GetRoot().calendar:Open();

GetRoot().calendar:DisplayDate(time(),'toDoList);

This section describes

■ creating and removing To Do tasks

■ accessing tasks

■ checking-off tasks

■ using miscellaneous To Do List methods

■ using the To Do List soup

Creating and Removing Tasks 19

There are two To Do List methods that add a task: CreateToDoItem and

CreateToDoItemAll. The CreateToDoItem method takes four parameters, as

CreateToDoItem(date,richString,reminder,frequency). The

CreateToDoItemAll method takes two additional parameters, priority and

completed, which set the priority and completion status of the new task.

The following code example adds a task to today’s To Do List:

GetRoot().calendar:GetToDo():CreateToDoItem (time(),

"test", nil, nil);

The To Do List GetToDoEntry method (discussed in “Accessing Tasks” beginning

on page 19-24) will also create a soup entry if one does not exist for that date.

To remove tasks, use the To Do List method

RemoveOldToDoItems, which

removes either all or those tasks that have been marked-off before a speciﬁc date.

The following code sample removes all the nonrepeating To Do List tasks in the

twentieth century:

GetRoot().calendar:GetToDo():

RemoveOldToDoItems(StringToDate("1/1/2000"),'all,nil);

Accessing Tasks 19

The To Do List provides three methods for accessing tasks:

■ GetToDoItemsForThisDate

■ GetToDoEntry

■ GetToDoItemsForRange.

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