Inside Macintosh: QuickDraw GX Printing /

Chapter 3 - Page Formatting and Dialog Box Customization / Page Formatting and Dialog Box Customization Reference

Constants for Collection Item Categories and Tag IDs

Collection Item Categories

QuickDraw GX assigns collection object items to several collection item categories. QuickDraw GX tag categories are defined in the collection tag category enumeration, represented by gxCollectionCategory:

typedef short gxCollectionCategory;

enum {
   gxNoCollectionCategory        = (gxCollectionCategory) 0x0000,
   gxOutputDriverCategory        = (gxCollectionCategory) 0x0001,
   gxFormattingDriverCategory    = (gxCollectionCategory) 0x0002,
   gxDriverVolatileCategory      = (gxCollectionCategory) 0x0004,
   
   gxVolatileOutputDriverCategory = 
            gxOutputDriverCategory + gxDriverVolatileCategory,
   gxVolatileFormattingDriverCategory =
            gxFormattingDriverCategory + gxDriverVolatileCategory
};

Constant descriptions

gxNoCollectionCategory

The item persists whether or not a printer-driver switch occurs or the collection is flattened.

gxOutputDriverCategory

The item is affected by a change in the output printer driver.

gxFormattingDriverCategory

The item is affected by a change in the formatting printer driver.

gxDriverVolatileCategory

The item is affected by a change in either the output printer driver or formatting printer driver. The item is purged when the collection is flattened if the collectionPersistenceBit is also set.

gxVolatileOutputDriverCategory

The item is purged if the output printer driver changes.

gxVolatileFormattingDriverCategory

The item is purged if the formatting printer driver changes.

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