Reserved ranges

• The range 0x90400000-0x904FFFFF is reserved by AROS.
• The range 0x90420000-0x9042FFFF is reserved for core Zune classes, ie. internal classes in muimaster.library (Subversion:workbench/libs/muimaster).
• The range 0x90470000-0x9047FFFF is reserved for core AROS classes, ie. external classes (Subversion:workbench/classes/zune).

For convenience, the following defines are available:

MUIB_MUI  = TAG_USER                   = 0x80000000  /* Base for legacy MUI identifiers   */
MUIB_RSVD = (MUIB_MUI   |  0x10400000) = 0x90400000  /* Base for AROS reserved range      */
MUIB_ZUNE = (MUIB_RSVD  |  0x00020000) = 0x90420000  /* Base for Zune core reserved range */
MUIB_AROS = (MUIB_RSVD  |  0x00070000) = 0x90470000  /* Base for AROS core reserved range */

Allocating identifiers

The identifiers are on the form (BASE | 0x0000ccnn), where:

• BASE is either MUIB_ZUNE or MUIB_AROS.
• cc is the class number.
• nn is the method or attribute number.

Class, method and attribute numbers are allocated sequentially to make it easy to find unused slots. Method and attribute identifiers are separate number spaces, so a method can (and most likely will) have the same identifier as an attribute.

When creating a new class, first select the apropriate BASE depending on the type of class. Then allocate the class number by picking the lowest available number. The first method (and the first attribute) of this class will then have the identifier (BASE | 0x0000cc00 | 0x00000000), the second (BASE | 0x0000cc00 | 0x00000001) and so on.

Registry