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	Chapters
	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 A, B, C, D, E

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CHAPTER 23. PRESENTATION TYPES

Returns the object associated with the presentation presentation.

=> (setf presentation-object) object presentation [Generic Function]
Changes the object associated with the presentation presentation to object.

=> presentation-type presentation [Generic Function]
Returns the presentation type associated with the presentation presentation.

=> (setf presentation-type) type presentation [Generic Function]
Changes the object associated with the presentation presentation to object.

=> presentation-single-box presentation [Generic Function]
Returns the "single box" attribute of the presentation presentation, which controls how the
presentation is highlighted and when it is sensitive. This will be one of four values:

• nil (the default) - if the pointer is pointing at a visible piece of the output that was drawn
  as part of the presentation, then it is considered to be pointing at the presentation. The
  presentation is highlighted by highlighting each visible part of the output that was drawn
  as part of the presentation.
  
  
• t - if the pointer is inside the bounding rectangle of the presentation, it is considered to
  be pointing at the presentation. The presentation is highlighted by drawing a thin border
  around the bounding rectangle.
  
  
• :position - like t for determining whether the pointer is pointing at the presentation, but
  like nil for highlighting.
  
  
• :highlighting - like nil for determining whether the pointer is pointing at the presenta-
  tion, but like t for highlighting.

=> (setf presentation-single-box) single-box presentation [Generic Function]
Changes the "single box" attribute of the presentation presentation to single-box.

=> presentation-modifier presentation [Generic Function]
Returns the "modifier" associated with the presentation presentation. The modifier is some sort
of object that describes how the presentation object might be modified. For example, it might
be a function of one argument (the new value) that can be called in order to store a new value
for object after a user somehow "edits" the presentation.

23.3 Presentation Types

The type associated with a presentation is specified with a presentation type specifier, an object
matching one of the following three patterns:

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Page 205	Table of Contents	Index	Page 207
	Chapters
	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 A, B, C, D, E