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Download Apple Newton Utilities User`s guide
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C H A P T E R 1 Overview Imaging and Printing 1 At the operating system level, the Newton imaging and printing software is based on an object-oriented, device-independent imaging model. The imaging model is monochrome since the current Newton screen is a black-and-white screen. NewtonScript application programs don’t call low-level imaging routines directly to do drawing or image manipulation. In fact, most drawing is handled for applications by the user interface components they incorporate, or when they call other routines that display information. However, there is a versatile set of high-level drawing routines that you can call directly to create and draw shapes, pictures, bitmaps, and text. When drawing, you can vary the pen thickness, pen pattern, fill pattern, and other attributes. For details on drawing, refer to Chapter 13, “Drawing and Graphics.” The Newton text imaging facility supports Unicode directly, so the system can be easily localized to display languages using different script systems. The system is extensible, so it’s possible to add additional fonts, font engines, and printer drivers. The high-level interface to printing on the Newton uses a model identical to that used for views. Essentially, you design a special kind of view called a print format to specify how printed information is to be laid out on the page. Print formats use a unique view template that automatically adjusts its size to the page size of the printer chosen by the user. When the user prints, the system handles all the details of rendering the views on the printer according to the layout you specified. The Newton offers the feature of deferred printing. The user can print even though he or she is not connected to a printer at the moment. An object describing the print job is stored in the Newton Out Box application, and when a printer is connected later, the user can then select that print job for printing. Again, this feature is handled automatically by the system and requires no additional application programming work. For information on how to add printing capabilities to an application, refer to Chapter 21, “Routing Interface.” Sound 1 The Newton includes a monophonic speaker and can play sounds sampled at rates up to 22 kHz. You can attach sounds to particular events associated with a view, such as showing it, hiding it, and scrolling it. You can also use sound routines to play sounds synchronously or asynchronously at any other time. Newton can serve as a phone dialer by dialing phone numbers through the speaker. The dialing tones are built into the system ROM, along with several other sounds that can be used in applications. System Services 1-9
