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Inside Macintosh: QuickDraw GX Environment and Utilities /

Chapter 5 - Collection Manager / Collection Manager Reference

Data Types

Attribute Bit Masks

Using the attribute bit numbers, the Collection Manager provides convenient attribute masks for each of the attributes:

enum {
   collectionUser0Mask = 1L << collectionUser0Bit,
   collectionUser1Mask = 1L << collectionUser1Bit,
   collectionUser2Mask = 1L << collectionUser2Bit,
   collectionUser3Mask = 1L << collectionUser3Bit,
   collectionUser4Mask = 1L << collectionUser4Bit,
   collectionUser5Mask = 1L << collectionUser5Bit,
   collectionUser6Mask = 1L << collectionUser6Bit,
   collectionUser7Mask = 1L << collectionUser7Bit,
   collectionUser8Mask = 1L << collectionUser8Bit,
   collectionUser9Mask = 1L << collectionUser9Bit,
   collectionUser10Mask = 1L << collectionUser10Bit,
   collectionUser11Mask = 1L << collectionUser11Bit,
   collectionUser12Mask = 1L << collectionUser12Bit,
   collectionUser13Mask = 1L << collectionUser13Bit,
   collectionUser14Mask = 1L << collectionUser14Bit,
   collectionUser15Mask = 1L << collectionUser15Bit,

   collectionReserved0Mask = 1L << collectionReserved0Bit,
   collectionReserved1Mask = 1L << collectionReserved1Bit,
   collectionReserved2Mask = 1L << collectionReserved2Bit,
   collectionReserved3Mask = 1L << collectionReserved3Bit,
   collectionReserved4Mask = 1L << collectionReserved4Bit,
   collectionReserved5Mask = 1L << collectionReserved5Bit,
   collectionReserved6Mask = 1L << collectionReserved6Bit,
   collectionReserved7Mask = 1L << collectionReserved7Bit,
   collectionReserved8Mask = 1L << collectionReserved8Bit,
   collectionReserved9Mask = 1L << collectionReserved9Bit,
   collectionReserved10Mask = 1L << collectionReserved10Bit,
   collectionReserved11Mask = 1L << collectionReserved11Bit,
   collectionReserved12Mask = 1L << collectionReserved12Bit,
   collectionReserved13Mask = 1L << collectionReserved13Bit,

   collectionPersistenceMask = 1L << collectionPersistenceBit,
   collectionLockMask = 1L << collectionLockBit
};

You can use these attribute masks when testing or setting a particular collection item attribute.

For more information about collection attributes, see "Collection Attributes" beginning on page 5-9.

For an example using these attributes, see "Getting and Setting the Attributes of an Item" beginning on page 5-24.