Datasheet

Figure 1-2
5. Export a slide show as a QuickTime movie by choosing File ➪ Export. Slide Master writes out a
QuickTime movie and opens it with QuickTime Player.
6. Save your document by choosing File ➪ Save.
How It Works
Slide Master is a document-based application, which means that it provides a user interface for individ-
ual documents. In this case, documents are collections of slides that you can sift through and export as
QuickTime movies. Slide Master documents can be opened, saved, and closed using the File menu.
Other document-based applications also support printing, although Slide Master does not.
Much of the functionality you see here comes from Slide Master’s application framework: Cocoa. The
Cocoa application frameworks provide the implementation for the things you see on the screen: win-
dows, pictures, menus, buttons, and so on. Cocoa also provides support for managing the document:
reading and writing document files, closing the document when its window is closed, and routing menu
commands to the selected document. Finally, Cocoa provides tools for storing application data, includ-
ing working with user preferences and storing lists of items in memory.
Of course Slide Master uses QuickTime to generate movie files. You are probably already familiar with
QuickTime, both through QuickTime Player and through web browsers that support the display of
5
The Mac OS X Environment
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