Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 17 - File Objects / File Objects Reference

File Objects Routines

Managing Unknown Objects

QuickDraw 3D creates an unknown object when it encounters an unrecognized type of object while reading a metafile. Your application might know how to handle objects of that type, so QuickDraw 3D provides routines that you can use to get the type and contents of an unknown object.

Note

You cannot explicitly create an unknown object.

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Subtopics

Q3Unknown_GetType

Q3Unknown_GetDirtyState

Q3Unknown_SetDirtyState

Q3UnknownText_GetData

Q3UnknownText_EmptyData

Q3UnknownBinary_GetData

Q3UnknownBinary_EmptyData